Computer Network Security
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Questions and Answers

What is a major challenge posed by NAT to a specific security protocol?

  • TCP
  • IPsec (correct)
  • SSH
  • SSL/TLS

    • What is the primary purpose of Virtual Private Networking (VPN)?

  • To securely extend a private network over a public network (correct)
  • To allow multiple devices to share a single IP address
  • To prioritize traffic on a network
  • To provide public access to a private network

    • What type of VPN allows authorized clients to access a private network?

  • Site-to-site VPN
  • Public access VPN
  • Remote access VPN (correct)
  • Network access VPN

    • What is a requirement for setting up a remote access VPN?

    <p>Clients install VPN client software on their machines</p> Signup and view all the answers

    What is a benefit of using a VPN?

    <p>Guarantees of data confidentiality, integrity, and authentication</p> Signup and view all the answers

    What is the primary purpose of the shared secret session key established during the SSH connection?

    <p>To encrypt all further communication between the client and server</p> Signup and view all the answers

    What is the purpose of the Authentication Header (AH) protocol in IPSec?

    <p>To provide connectionless integrity and data origin authentication for IP datagrams</p> Signup and view all the answers

    What type of encryption is typically used in conjunction with the shared secret session key in SSH?

    <p>AES or 3DES</p> Signup and view all the answers

    What is the purpose of the client sending its public key to the server in SSH?

    <p>To authenticate the client to the server using public-key authentication</p> Signup and view all the answers

    What is the primary concern addressed by the Encapsulating Security Payload (ESP) protocol in IPSec?

    <p>Network eavesdropping</p> Signup and view all the answers

    What is the primary benefit of using end-to-end encryption in SSH?

    <p>It prevents network eavesdropping and ensures confidentiality</p> Signup and view all the answers

    What is the primary purpose of tunneling protocols?

    <p>To prevent network eavesdropping</p> Signup and view all the answers

    What is the function of SSH?

    <p>To provide a secure interactive command session</p> Signup and view all the answers

    What is the primary vulnerability of unencrypted TCP packets?

    <p>Eavesdropping</p> Signup and view all the answers

    What is the role of Iptables on Linux?

    <p>To provide firewall functionality</p> Signup and view all the answers

    What is the primary benefit of end-to-end encryption?

    <p>Secure data transmission</p> Signup and view all the answers

    What is the purpose of a 'black-list' in a firewall?

    <p>To block access to specific websites</p> Signup and view all the answers

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