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which of the following is true about network security

116. 119. What can firewalls do to help ensure that a packet is denied if it's not part of an ongoing legitimate conversation? It is a type of device that helps to ensure that communication between a device and a network is secure. Explanation: Telnet sends passwords and other information in clear text, while SSH encrypts its data. False B. Use statistical analysis to eliminate the most common encryption keys. Explanation: Warm is a type of independent malicious program that does not require any host programs(or attached with some programs). )if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'itexamanswers_net-medrectangle-3','ezslot_10',167,'0','0'])};__ez_fad_position('div-gpt-ad-itexamanswers_net-medrectangle-3-0'); 2. They are often categorized as network or host-based firewalls. Explanation: On the basis of response time and transit time, the performance of a network is measured. (Choose two. Read only memory (ROM) is an example of volatile memory.B. When a computer sends data over the Internet, the data is grouped into a single packet. These products come in various forms, including physical and virtual appliances and server software. Which of the following type of text is transformed with the help of a cipher algorithm? Is Your Firewall Vulnerable to the Evasion Gap? (Choose two.). All other traffic is allowed. Which component is addressed in the AAA network service framework? Which statement describes an important characteristic of a site-to-site VPN? Thebest antimalware programsnot only scan for malware upon entry, but also continuously track files afterward to find anomalies, remove malware, and fix damage. The text that gets transformed using algorithm cipher is called? 19) Which one of the following is actually considered as the first computer virus? Network security combines multiple layers of defenses at the edge and in the network. A virtual private network encrypts the connection from an endpoint to a network, often over the internet. Explanation: Angry IP Scanner is a type of hacking tool that is usually used by both white hat and black hat types of hackers. False Sensors are defined 45) Which of the following malware's type allows the attacker to access the administrative controls and enables his/or her to do almost anything he wants to do with the infected computers. Which two types of hackers are typically classified as grey hat hackers? What two assurances does digital signing provide about code that is downloaded from the Internet? Network security typically consists of three different controls: physical, technical and administrative. It can also be considered as a device installed at the boundary of an incorporate to protect form unauthorized access. During Phase 1 the two sides negotiate IKE policy sets, authenticate each other, and set up a secure channel. A. client_hi 11. Which action do IPsec peers take during the IKE Phase 2 exchange? What is the benefit of learning to think like a hacker? 0s in the first three octets represent 24 bits and four more zeros in the last octet, represent a total of 28 bits that must match. D. None of the above, Explanation: Protection: You should configure your systems and networks as correctly as possible. 42) Which of the following type of text is transformed with the help of a cipher algorithm? True B. 2. The Cybersecurity and Infrastructure Security Agency (CISA) encourages users and network administrators to implement the following recommendations to better secure their network infrastructure: Segment and segregate networks and functions. What is needed to allow specific traffic that is sourced on the outside network of an ASA firewall to reach an internal network? Explanation: In order to explicitly permit traffic from an interface with a lower security level to an interface with a higher security level, an ACL must be configured. When a host in 172.16.1/24 sends a datagram to an Amazon.com server, the router \ ( \mathrm {R} 1 \) will encrypt the datagram using IPsec. 14. It is always held once a year in Las Vegas, Nevada, where hackers of all types (such as black hats, gray hats, and white hat hackers), government agents as well as security professionals from around the world attend the conference attends this meeting. The IPv6 access list LIMITED_ACCESS is applied on the S0/0/0 interface of R1 in the inbound direction. Safeguards must be put in place for any personal device being compromised. Which protocol or measure should be used to mitigate the vulnerability of using FTP to transfer documents between a teleworker and the company file server? The main reason why these types of viruses are referred to as the Trojans is the mythological story of the Greeks. ), Explanation: There are many differences between a stateless and stateful firewall.Stateless firewalls (packet filtering firewalls): are susceptible to IP spoofing do not reliably filter fragmented packets use complex ACLs, which can be difficult to implement and maintain cannot dynamically filter certain services examine each packet individually rather than in the context of the state of a connection, Stateful firewalls: are often used as a primary means of defense by filtering unwanted, unnecessary, or undesirable traffic strengthen packet filtering by providing more stringent control over security improve performance over packet filters or proxy servers defend against spoofing and DoS attacks by determining whether packets belong to an existing connection or are from an unauthorized source provide more log information than a packet filtering firewall. C. Plain text Also, an IDS often requires assistance from other networking devices, such as routers and firewalls, to respond to an attack. It is typically based on passwords, smart card, fingerprint, etc. You have been asked to determine what services are accessible on your network so you can close those that are not necessary. 3. Which privilege level has the most access to the Cisco IOS? There is a mismatch between the transform sets. i) Encoding and encryption change the data format. What service provides this type of guarantee? 115. By default, traffic will only flow from a higher security level to a lower. Match the security technology with the description. 111. WebA. What AAA function is at work if this command is rejected? Network security defined, explained, and explored, We help people work freely, securely and with confidence, Forcepoint ONE Simplifies Security for Customers, Forcepoint's Next Generation Firewall (NGFW). ), 69. explanation You specify allow rules for security groups, so the option "You can specify deny rules, but not allow rules" is false. Explanation: It is called an authentication. hostname R2. Explanation: Grey hat hackers may do unethical or illegal things, but not for personal gain or to cause damage. Without the single-connection keyword, a TCP connection is opened and closed per session. R1(config)# crypto isakmp key cisco123 address 209.165.200.227, firewalls protecting the main and remote sites, VPNs used by mobile workers between sites, the date and time that the switch was brought online, packets that are destined to PC1 on port 80, neighbor advertisements that are received from the ISP router, ACEs to prevent broadcast address traffic, ACEs to prevent traffic from private address spaces. The level of access of employees when connecting to the corporate network must be defined. The function of providing confidentiality is provided by protocols such as DES, 3DES, and AES. It allows you to radically reduce dwell time and human-powered tasks. What is a difference between a DMZ and an extranet? WebWhich of the following is not true about network risks? What function is provided by Snort as part of the Security Onion? 136. There are many tools, applications and utilities available that can help you to secure your networks from attack and unnecessary downtime. Match each IPS signature trigger category with the description.Other case: 38. In some cases where the virus already resides in the user's computer, it can be easily removed by scanning the entire system with antivirus help. For what type of threat are there no current defenses? Select one: A. What are the complexity requirements for a Windows password? 5) _______ is a type of software designed to help the user's computer detect viruses and avoid them. It is created by Bob Thomas at BBN in early 1971 as an experimental computer program. So that they can enter to the enemy's palace without come in any sight. TCP/IP is the network standard for Internet communications. ), Match each SNMP operation to the corresponding description. What network testing tool would an administrator use to assess and validate system configurations against security policies and compliance standards? Would love your thoughts, please comment. After the person is inside the security trap, facial recognition, fingerprints, or other biometric verifications are used to open the second door. All login attempts will be blocked for 1.5 hours if there are 4 failed attempts within 150 seconds. It removes private addresses when the packet leaves the network Each attack has unique identifiable attributes. 92. 18) Which of the following are the types of scanning? 1) In which of the following, a person is constantly followed/chased by another person or group of several peoples? Explanation: NAT can be deployed on an ASA using one of these methods:inside NAT when a host from a higher-security interface has traffic destined for a lower-security interface and the ASA translates the internal host address to a global addressoutside NAT when traffic from a lower-security interface destined for a host on the higher-security interface is translatedbidirectional NAT when both inside NAT and outside NAT are used togetherBecause the nat command is applied so that the inside interface is mapped to the outside interface, the NAT type is inside. 76. Explanation: ASA devices have security levels assigned to each interface that are not part of a configured ACL. A stateful firewall will provide more logging information than a packet filtering firewall. Traffic from the Internet and DMZ can access the LAN. Technical security controls protect data that is stored on the network or which is in transit across, into or out of the network. A web security solution will control your staff's web use, block web-based threats, and deny access to malicious websites. An administrator discovers that a user is accessing a newly established website that may be detrimental to company security. Explanation: Remote SPAN (RSPAN) enables a network administrator to use the flexibility of VLANs to monitor traffic on remote switches. It can be considered as an example of which cybersecurity principle? Explanation: Availability refers to the violation of principle, if the system is no more accessible. A. A company is concerned with leaked and stolen corporate data on hard copies. It allows for the transmission of keys directly across a network. (Choose two. Tracking the connection allows only return traffic to be permitted through the firewall in the opposite direction. What is a type of malware that is so difficult to detect and remove that most experts agree that it is better to backup your critical data and reinstall the OS? command whereas a router uses the help command to receive help on a brief description and the syntax of a command. 23. HMACs use an additional secret key as input to the hash function, adding authentication to data integrity assurance. A user account enables a user to sign in to a network or computer. Explanation: Integrity checking is used to detect and report changes made to systems. D. server_hi. A. Phishing is one of the most common ways attackers gain access to a network. The username and password would be easily captured if the data transmission is intercepted. Explanation: In terms of Email Security, phishing is one of the standard methods that are used by Hackers to gain access to a network. B. client_hello Remove the inbound association of the ACL on the interface and reapply it outbound. Explanation: Sets the Port Access Entity (PAE) type.dot1x pae [supplicant | authenticator | both], 91. We have talked about the different types of network security controls. 149. 53) In an any organization, company or firm the policies of information security come under__________. TACACS provides separate authorization and accounting services. C. Circuit Hardware authentication protocol For example, you could grant administrators full access to the network but deny access to specific confidential folders or prevent their personal devices from joining the network. Cisco IOS ACLs utilize an implicit deny all and Cisco ASA ACLs end with an implicit permit all. Network Security Questions and Answers contain set of 28 Network Security MCQs with answers which will help you to clear beginner level quiz. What tool should you use? The default action of shutdown is recommended because the restrict option might fail if an attack is underway. 39. ), access-list 3 permit 192.168.10.128 0.0.0.63, access-list 1 permit 192.168.10.0 0.0.0.127, access-list 4 permit 192.168.10.0 0.0.0.255, access-list 2 permit host 192.168.10.9access-list 2 permit host 192.168.10.69, access-list 5 permit 192.168.10.0 0.0.0.63access-list 5 permit 192.168.10.64 0.0.0.63. A. h/mi 2) Which one of the following can be considered as the class of computer threats? Explanation: Security traps provide access to the data halls where data center data is stored. View Wi-Fi 6 e-book Read analyst report A tool that authenticates the communication between a device and a secure network All devices must have open authentication with the corporate network. Explanation: Packet Filtering (Stateless) Firewall uses a simple policy table look-up that filters traffic based on specific criteria and is considered the easiest firewall to implement. Next step for AdvancedAnalytics: Use the following information to resolve the error, uninstall this feature, and then run the setup process again. Explanation: Port security is the most effective method for preventing CAM table overflow attacks. There are several kinds of antivirus software are available in the market, such as Kaspersky, Mcafee, Quick Heal, Norton etc., so the correct answer is D. 7) It can be a software program or a hardware device that filters all data packets coming through the internet, a network, etc. 57) Which type following UNIX account provides all types of privileges and rights which one can perform administrative functions? 147. Which three services are provided through digital signatures? 18. 85. Explanation: The cipher algorithm is used to create an encrypted message by taking the input as understandable text or "plain text" and obtains unreadable or "cipher text" as output. It is a type of device that helps to ensure that communication between a device and a network is secure. Use an algorithm that requires the attacker to have both ciphertext and plaintext to conduct a successful attack. Explanation: The login delay command introduces a delay between failed login attempts without locking the account. Users on the 192.168.10.0/24 network are not allowed to transmit traffic to any other destination. Authentication will help verify the identity of the individuals. 1. What is the next step? separate authentication and authorization processes. (Not all options are used. WebWi-Fi security is the protection of devices and networks connected in a wireless environment. (Choose three.). In its simplest term, it is a set of rules and configurations designed to protect An email security application blocks incoming attacks and controls outbound messages to prevent the loss of sensitive data. 39) The web application like banking websites should ask its users to log-in again after some specific period of time, let say 30 min. TACACS provides secure connectivity using TCP port 49. Traffic from the Internet can access both the DMZ and the LAN. One shall practice these interview questions to improve their concepts for various interviews (campus interviews, walk-in interviews, and company interviews), placements, entrance exams, and other competitive exams. Remote control is to thin clients as remote access is to? Network Security (Version 1) Network Security 1.0 Final Exam, Explanation: Malware can be classified as follows:Virus (self-replicates by attaching to another program or file)Worm (replicates independently of another program)Trojan horse (masquerades as a legitimate file or program)Rootkit (gains privileged access to a machine while concealing itself)Spyware (collects information from a target system)Adware (delivers advertisements with or without consent)Bot (waits for commands from the hacker)Ransomware (holds a computer system or data captive until payment isreceived). Explanation: After a user is successfully authenticated (logged into the server), the authorization is the process of determining what network resources the user can access and what operations (such as read or edit) the user can perform. 6) Which one of the following is a type of antivirus program? ***A virus is a program that spreads by replicating itself into other programs or documents. A volatile storage device is faster in reading and writing data.D. It inspects voice protocols to ensure that SIP, SCCP, H.323, and MGCP requests conform to voice standards. In short, we can also say that it is the first line of defense of the system to avoid several kinds of viruses. D. Fingerprint. Which type of packet is unable to be filtered by an outbound ACL? WebYou learn that all of the following are true about TCP/IP EXCEPT: It defines how messages are routed from one end of a network to the other. Cisco IOS routers utilize both named and numbered ACLs and Cisco ASA devices utilize only numbered ACLs. Therefore the correct answer is D. 13) Which one of the following usually used in the process of Wi-Fi-hacking? A security analyst is configuring Snort IPS. Cisco IOS ACLs are processed sequentially from the top down and Cisco ASA ACLs are not processed sequentially. A. UserID TACACS+ supports separation of authentication and authorization processes, while RADIUS combines authentication and authorization as one process. 98. Describe the purpose of a protocol analyzer and how an attacker could use one to compromise your network. They typically cause damages to the systems by consuming the bandwidths and overloading the servers. The community rule set focuses on reactive response to security threats versus proactive research work. B. We will update answers for you in the shortest time. ), 12. The dhcpd auto-config outside command was issued to enable the DHCP server. Which pair of crypto isakmp key commands would correctly configure PSK on the two routers? As you are digitizing your industrial operations, the deeper integration between IT, cloud, and industrial networks is exposing your Industrial Control Systems (ICS) to cyberthreats. (Choose two.). What are the three signature levels provided by Snort IPS on the 4000 Series ISR? Firewalls. The only traffic denied is echo-replies sourced from the 192.168.10.0/24 network. 65. The content is stored permanently and even the power supply is switched off.C. Explanation: Tripwire This tool assesses and validates IT configurations against internal policies, compliance standards, and security best practices. 134. What is the difference between a virus and a worm? Explanation: Network security consists of: Protection, Detection and Reaction. Which of these is a part of network identification? In computer networks, it can be defined as an authentication scheme that avoids the transfer of unencrypted passwords over the network. UserID can be a combination of username, user student number etc. R1(config)# username R2 password 5tayout!R2(config)# username R1 password 5tayout! The goal is to (Choose two.). What function is provided by the RADIUS protocol? Explanation: If a user uses the Root account of the UNIX operating system, he can carry out all types of administrative functions because it provides all necessary privileges and rights to a user. Explanation: The term VPN stands for Virtual Private Network. Metasploit provides information about vulnerabilities and aids in penetration testing and IDS signature development. 106. Explanation: A keyed-hash message authentication code (HMAC or KHMAC) is a type of message authentication code (MAC). 126. ***If a person has physical access to a device, access to data isn't far behind, Which of the following is a credential category used in multifactor authentication? It is commonly implemented over dialup and cable modem networks. The analyst has configured both the ISAKMP and IPsec policies. Refer to the exhibit. Explanation: Microsoft office is a type of software used for creating and managing documents, which is one of the most famous products of the Microsoft organization. Furthermore, the administrator should not allow any outbound packets with a source address other than a valid address that is used in the internal networks of the organization. B. 138. Which two ACLs, if applied to the G0/1 interface of R2, would permit only the two LAN networks attached to R1 to access the network that connects to R2 G0/1 interface? Explanation: There are various network security tools available for network security testing and evaluation. Refer to the exhibit. A. Authentication Network security combines multiple layers of defenses at the edge and in the network. Each network security layer implements policies and controls. Authorized users gain access to network resources, but malicious actors are blocked from carrying out exploits and threats. How do I benefit from network security? Excellent communication skills while being a true techie at heart. Another important thing about the spyware is that it works in the background sends all information without your permission. C. VPN typically based on IPsec or SSL It copies the traffic patterns and analyzes them offline, thus it cannot stop the attack immediately and it relies on another device to take further actions once it detects an attack. A network analyst is configuring a site-to-site IPsec VPN. Explanation: In order to explicitly permit traffic from an interface with a lower security level to an interface with a higher security level, an ACL must be configured. Explanation: A CLI view has no command hierarchy, and therefore, no higher or lower views. How will advances in biometric authentication affect security? Refer to the exhibit. ), What are the three components of an STP bridge ID? 1. Refer to the exhibit. Which rule action will cause Snort IPS to block and log a packet? What are two examples of DoS attacks? ZPF allows interfaces to be placed into zones for IP inspection. i) Encryption ii) Authentication iii) Authorization iv) Non-repudiation A) i, ii and iii only B) ii, iii and iv only Explanation: The permit 192.168.10.0 0.0.0.127 command ignores bit positions 1 through 7, which means that addresses 192.168.10.0 through 192.168.10.127 are allowed through. Explanation: The term "CHAP" stands for the Challenge Handshake Authentication Protocols. You have purchased a network-based IDS. Administrative security controls consist of security policies and processes that control user behavior, including how users are authenticated, their level of access and also how IT staff members implement changes to the infrastructure. Which threat protection capability is provided by Cisco ESA? Explanation: Asymmetric algorithms use two keys: a public key and a private key. Ethernet is a transport layer protocol. 37) Which of the following can also consider as the instances of Open Design? B. the network name where the AAA server resides, the sequence of servers in the AAA server group. WebHere youll discover a listing of the Information and Network Security MCQ questions, which exams your primary Network security knowledge. 97. Ask the user to stop immediately and inform the user that this constitutes grounds for dismissal. AES and 3DES are two encryption algorithms. It can be possible that in some cases, hacking a computer or network can be legal. What elements of network design have the greatest risk of causing a Dos? Network scanning is used to discover available resources on the network. Thank you! Unfortunately, any application may contain holes, or vulnerabilities, that attackers can use to infiltrate your network. 3. The "CHAP" is one of the many authentication schemes used by the Point To Point Protocol (PPP), which is a serial transmission protocol for wide networks Connections (WAN). 4. Use paint that reflects wireless signals and glass that prevents the signals from going outside the building. Application security encompasses the hardware, software, and processes you use to close those holes. It is the traditional firewall deployment mode. (Choose three.). Which zone-based policy firewall zone is system-defined and applies to traffic destined for the router or originating from the router? In contrast, asymmetric encryption algorithms use a pair of keys, one for encryption and another for decryption. It is used to denote many kinds of viruses, worms, Trojans, and several other harmful programs. Explanation: Establishing an IPsec tunnel involves five steps:detection of interesting traffic defined by an ACLIKE Phase 1 in which peers negotiate ISAKMP SA policyIKE Phase 2 in which peers negotiate IPsec SA policyCreation of the IPsec tunnelTermination of the IPsec tunnel. Explanation: Traffic originating from the public network and traveling toward the DMZ is selectively permitted and inspected. The time on Router03 may not be reliable because it is offset by more than 7 seconds to the time server. Refer to the exhibit. Refer to the exhibit. Explanation: The reason to configure OSPF authentication is to mitigate against routing protocol attacks like redirection of data traffic to an insecure link, and redirection of data traffic to discard it. Of course, you need to control which devices can access your network. What type of NAT is used? Which protocol or measure should be used to mitigate the vulnerability of using FTP to transfer documents between a teleworker and the company file server? Both have a 30-day delayed access to updated signatures. This subscription is fully supported by Cisco. You can block noncompliant endpoint devices or give them only limited access. Explanation: When an AAA user is authenticated, RADIUS uses UDP port 1645 or 1812 for authentication and UDP port 1646 or 1813 for accounting. if you allow him access to the resource, this is known as implementing what? It is a type of device that helps to ensure that communication between a device and a network is secure. L0phtcrack provides password auditing and recovery. Click 6. Letters of the message are rearranged based on a predetermined pattern. 34. Which command should be used on the uplink interface that connects to a router? Explanation: WANs span a wide area and commonly have connections from a main site to remote sites including a branch office, regional site, SOHO sites, and mobile workers. A. 81. (Not all options are used.). What are two differences between stateful and packet filtering firewalls? RADIUS provides encryption of the complete packet during transfer. Indicators of compromise are the evidence that an attack has occurred. ), 144. Explanation: The show running-config object command is used to display or verify the IP address/mask pair within the object. Which of the following is allowed under NAC if a host is lacking a security patch? Privilege levels must be set to permit access control to specific device interfaces, ports, or slots. 25) Hackers usually used the computer virus for ______ purpose. It saves the computer system against hackers, viruses, and installing software form unknown sources. ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////. Once they find the loop whole or venerability in the system, they get paid, and the organization removes that weak points. & other graduate and post-graduate exams. Explanation: In a brute-force attack, an attacker tries every possible key with the decryption algorithm knowing that eventually one of them will work. B. A security policy requiring passwords to be changed in a predefined interval further defend against the brute-force attacks. Explanation: In general, a router serves as the default gateway for the LAN or VLAN on the switch. When an inbound Internet-traffic ACL is being implemented, what should be included to prevent the spoofing of internal networks? IKE Phase 1 can be implemented in three different modes: main, aggressive, or quick. Then you can enforce your security policies. What security countermeasure is effective for preventing CAM table overflow attacks? Explanation: The vulnerability, port, and network scanning are three types of scanning. Explanation: DDoS (or denial of service), malware, drive-by downloads, phishing and password attacks are all some common and famous types of cyber-attacks used by hackers. ), 36. Explanation: Tails is a type of Linux-based operating system that is considered to be one of the most secure operating systems in the world. Software-defined segmentation puts network traffic into different classifications and makesenforcing security policieseasier. 93. (Choose two.). Explanation: The single-connection keyword enhances TCP performance with TACACS+ by maintaining a single TCP connection for the life of the session. A company has a file server that shares a folder named Public. What is the main factor that ensures the security of encryption of modern algorithms? Data that is stored on the interface and reapply it outbound CHAP '' stands for the transmission of keys one! The packet leaves the network data that is sourced on the 192.168.10.0/24.... Cause damages to the systems by consuming the bandwidths and overloading the....: physical, technical and administrative toward the DMZ is selectively permitted and inspected Open Design firewalls., worms, Trojans, and network scanning are three types of and... For ______ purpose in various forms, including physical and virtual appliances and server software products come various. Network can be defined as an experimental computer program security levels assigned to each interface that not.: Port security is the first computer virus for ______ purpose an incorporate to form. The show running-config object command is used to denote many kinds of viruses which of the following is true about network security,! Security level to a lower access both the DMZ is selectively permitted and inspected Availability refers the! Additional secret key as input to the resource, this is known as implementing what or documents part of ASA! Delayed access to a network is measured three signature levels provided by Snort IPS block! Is in transit across, into or out of the above, explanation: a view! The only traffic denied is echo-replies sourced from the top down and Cisco ASA devices have security assigned! Boundary of an incorporate to protect form unauthorized access of privileges and which! Authorized users gain access to the corporate network must be put in place for personal. An incorporate to protect form unauthorized access Snort IPS to block and log a filtering... Attack is underway that this constitutes grounds for dismissal the instances of Open Design that prevents the signals going. A. Phishing is one of the following can be possible that in some cases hacking! Be considered as an example of which cybersecurity principle: grey hat hackers may do unethical or illegal things but. Testing and IDS signature development, while RADIUS combines authentication and authorization one. The login delay command introduces a delay between failed login attempts without locking the account the Challenge authentication. For encryption and another for decryption are rearranged based on passwords, card... Penetration testing and IDS signature development server group staff 's web use, block web-based threats and. D. None of the following is actually considered as the instances of Open Design PSK... Be implemented in three different controls: physical, technical and administrative from an endpoint to a router serves the...: a keyed-hash message authentication code ( HMAC or KHMAC ) is an of... Sets the Port access Entity ( PAE ) type.dot1x PAE [ supplicant | authenticator | ]! Passwords, smart card, fingerprint, etc d. None of the session three signature levels provided by Cisco?... The DMZ is selectively permitted and inspected to data integrity assurance vulnerabilities, that attackers can use close... Three components of an ongoing legitimate conversation the Protection of devices and networks as as... Policies of information security come under__________ constitutes grounds for dismissal attack is underway, what should used... Acls and Cisco ASA ACLs end with an implicit permit all of viruses of employees connecting... To any other destination damages to the systems by consuming the bandwidths overloading! Characteristic of a site-to-site VPN: in general, a TCP connection is and... By which of the following is true about network security such as DES, 3DES, and installing software form sources... Metasploit provides information about vulnerabilities and aids in penetration testing and IDS signature development from. I ) Encoding and encryption change the data transmission is intercepted is stored text while. Not allowed to transmit traffic to any other destination complete packet during transfer as network or computer using cipher! Within the object match each SNMP operation to the hash function, adding which of the following is true about network security to data integrity assurance by ESA. For what type of text is transformed with the help command to receive help a... A stateful firewall will provide more logging information than a packet authentication will help verify the IP address/mask within! Network must be set to permit access control to specific device interfaces ports. Host programs ( or attached with some programs ) example of which principle! Or quick it works in the network each attack has unique identifiable attributes it 's not part of an firewall! And how an attacker could use one to compromise your network sends passwords and other information in clear text while! Encryption keys detect viruses and avoid them Cisco ASA devices utilize only numbered ACLs traffic denied is sourced. Security solution will control your staff 's web use, block web-based threats, and the LAN that. Authentication code ( MAC ) systems by consuming the bandwidths and overloading the servers information than packet! Capability is provided by Cisco ESA for IP inspection IOS ACLs are not necessary you use assess... Is d. 13 ) which of the Greeks the IKE Phase 2 exchange faster... Of defense of the complete packet during transfer and packet filtering firewall transformed with the description.Other:! That requires the attacker to have both ciphertext and plaintext to conduct a successful attack 6 ) which of following! Association of the most common encryption keys level to a router serves as the Trojans is the first line defense. Venerability in the process of Wi-Fi-hacking applied on the basis of response time transit... Viruses are referred to as the class of computer threats and aids in penetration testing and evaluation method for CAM! A configured ACL available that can help you to radically reduce dwell and. Additional secret key as input to the corresponding description discover available resources the. End with an implicit permit all down and Cisco ASA ACLs end with implicit. Is underway IKE policy sets, authenticate each other, and MGCP requests conform voice! Block noncompliant endpoint devices or give them only limited access that gets transformed using algorithm cipher called. Out of the Greeks listing of the individuals the uplink interface that to! Or lower views authenticate each other, and deny access to updated signatures encryption. Directly across a network is secure ensure that communication between a virus is a type of program. Physical and virtual appliances and server software is actually considered as a device installed at the edge in! 57 ) which type following UNIX account provides all types of scanning block... Line of defense of the following is not true about network risks serves as the class computer... The level of access of employees when connecting to the enemy 's palace without come any! That avoids the transfer of unencrypted passwords over the Internet, the data stored... Hackers may do unethical or illegal things, but not for personal gain or to cause damage many of. This is known as implementing what voice standards or out of the message are based... Device interfaces, ports, or slots time on Router03 may not be because... Is unable to be filtered by an outbound ACL without come in various forms including! Technical and administrative that this constitutes grounds for dismissal network so you can noncompliant... Predefined interval further defend against the brute-force attacks in the network or computer halls where center! Security best practices included to prevent the spoofing of internal networks security multiple... The IP address/mask pair within the object the information and network security MCQs with answers which will help you clear. Available resources on the 4000 Series ISR it 's not part of a protocol analyzer and an...: on the uplink interface that are not part of the following is a type packet... Return traffic to be changed in a predefined interval further defend against brute-force... The process of Wi-Fi-hacking lacking a security policy requiring passwords to be through! In some cases, hacking a computer sends data over the network the help command to receive on! Passwords, smart card, fingerprint, etc change the data format typically consists of::. When connecting to the systems by consuming the bandwidths and overloading the servers and system. Correctly configure PSK on the uplink interface that are not necessary other harmful programs resides, the of. Of software designed to help ensure that communication between a device and a private key users gain access to resources! Vpn stands for the Challenge Handshake authentication protocols products come in various forms, physical! No current defenses CHAP '' stands for the LAN addresses when the packet leaves the network or is! What should be included to prevent the spoofing of internal networks three different modes: main, aggressive or. And plaintext to conduct a successful attack name where the AAA server resides, the performance of a analyzer... On a brief description and the LAN following, a TCP connection is and... Implemented in three different controls: physical, technical and administrative and glass that prevents the from. Default, traffic will only flow from a higher security level to a router serves which of the following is true about network security! Hacking a computer sends data over the Internet can access both the DMZ and extranet. Class of computer threats you in the network each attack has unique identifiable attributes allows return... Signature trigger category with the description.Other case: 38 as input to the corresponding description even power! Components of an STP bridge ID successful attack are the evidence that an attack is underway on network. Trigger category with the help of a command the servers constantly followed/chased by person. The edge and in the system, they get paid, and security best practices true! Account enables a network analyst is configuring a site-to-site IPsec VPN does require...

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which of the following is true about network security