Networking Concepts Custom 2

Which of these are characteristics of the Data Link Layer? (Select all that apply)

Which protocol enables file sharing, printer sharing, network browsing, and inter-process communication (through named pipes) over a computer network?

What is the difference between Layer 2 and Layer 3 switches?

Which statement is true about MAC addresses? (Select all that apply)

Layer 2 network switches maintain a table in memory that matches MAC addresses to the switch’s Ethernet ports. This table is called a __________ table.

Which is the correct subnet mask for IP 172.16.242.133/27

Which of these statements is false?

Which is true of tunnel mode?

The meaning of tunnel in the tunnel model of IPSec is that

With IPSEc, if the encryption protocol is ESP and encryption algorithm is a variant of AES_GCM, what is the authentication protocol?

Which of these depicts the combination of AH and ESP in transport and tunnel modes. (Select all that apply)

Which of these depicts an IPSec data datagram with ESP in tunnel mode?

Which of these depicts AH in IPSec tunnel mode?

AH is the ______ of a packet and a _________ key.

In what scenario, would you not use ESP?

True or False: IPSec uses both transport mode and tunnel mode to encrypt data

What are the disadvantages of IPSec? (Select all that apply)

With IPSec, the Key Management Protocol and Internet Security Association provides a framework for authentication and key exchange. What is this called?

It also provides data integrity, authentication, and anti-replay and it does not provide encryption. The anti-replay protection protects against the unauthorized transmission of packets. It does not protect data confidentiality.

Name 3 protocols used in IPSec. (Select 3)

_________ encrypts only the data packet’s payload while leaving the IP header unchanged. The unencrypted packet header enables routers to determine the destination address of each data packet. As a result, IPSec transport is utilized in a closed and trusted network, such as to secure a direct link between two computers.

Which of these depicts basic IPSec protection in transport mode?

The ____________ is appropriate for sending data over public networks because it improves data security against unauthorised parties. The computer encrypts all data, including the payload and header, and adds a new header to it.