The EIGRP metric values include:

Which network topology requires a central controller or hub?

The attacker using a network of compromised devices is known as _____.

A network topology where a central computer is surrounded by one or more satellite computers is called a

The maximum number of IPv4 router address addresses that can be listed in the record route (RR) option field of an IPv4 header is

Which of the following is not a constituent of a residential telephone line?

Consider the data transfer using TCP over a 1 Gbps link. Assuming that the maximum segment lifetime (MSL) is set to 60 seconds, the minimum number of bits required for the sequence number field of the TCP header, to prevent the sequence number space from wrapping around during the MSL is

Consider the following routing table at an IP router

For each IP address in Group-I identify the correct choice of the next hop from Group-II using the entries from the routing table above.

List-I List-II A. 128.96.171.92 1. Interface 0 B. 128.96.167.151 2. Interface 1 C. 128.96.163.121 3. R2 D. 128.96.165.121 4. R3 5. R4 Codes: A B C D (a) 1 3 5 4 (b) 1 4 2 5 (c) 2 3 4 5 (d) 2 3 5 4

A sender S sends a message m to receiver R, which is digitally signed by S with its private key. In this scenario, one or more of the following security violations can take place. (I) S can launch a birthday attack to replace m with a fraudulent message. (II) A third party attacker can launch a birthday attack to replace m with a fraudulent message. (III) R can launch a birthday attack to replace m with a fraudulent message.

Consider a computer network using the distance vector routing algorithm in its network layer. The partial topology of the network is shown below.

The objective is to find the shortest-cost path from the router R to routers P and Q. Assume that R does not initially know the shortest routes to P and Q. Assume that R has three neighbouring routers denoted as X, Y and Z. During one iteration, R measures its distance to its neighbours X, Y, and Z as 3, 2 and 5, respectively. Router R gets routing vectors from its neighbours that indicate that the distance to router P from routers X, Y and Z are 7, 6 and 5, respectively. The routing vector also indicates that the distance to router Q from routers X, Y and Z are 4, 6 and 8 respectively. Which of the following statement(s) is/are correct with respect to the new routing table of R, after updation during this iteration?

1. The distance from R to Q will be stored as 7
2. The distance from R to P will be stored as 10
3. The next hop router for a packet from R to Q is Z
4. The next hop router for a packet from R to P is Y