| 51. | Which of the following assertions is FALSE about the Internet Protocol (IP) ? |
| a. | It is possible for a computer to have multiple IP addresses |
| b. | IP packets from the same source to the same destination can take different routes in the network |
| c. | IP ensures that a packet is discarded if it is unable to reach its destination within a given number of hops |
| d. | The packet source cannot set the route of an outgoing packets; the route is determined only by the routing tables in the routers on the way |
| View Answer Report Discuss Too Difficult! Search Google |
|
Answer: (d).The packet source cannot set the route of an outgoing packets; the route is determined only by the routing tables in the routers on the way
|
| 52. | Routers forward a packet using forwarding table entries. The network address of incoming packet may match multiple entries. How routers resolve this? |
| a. | Forward it the the router whose entry matches with the longest prefix of incoming packet |
| b. | Forward the packet to all routers whose network addresses match |
| c. | Discard the packet |
| d. | Forward it the the router whose entry matches with the longest suffix of incoming packet |
| View Answer Report Discuss Too Difficult! Search Google |
|
Answer: (a).Forward it the the router whose entry matches with the longest prefix of incoming packet
|
| 53. | Which one of the following fields of an IP header is NOT modified by a typical IP router? |
| a. | Checksum |
| b. | Source address |
| c. | Time to Live (TTL) |
| d. | Length |
| View Answer Report Discuss Too Difficult! Search Google |
|
Answer: (b).Source address
|
| 54. | In the network 200.10.11.144/27, the fourth octet (in decimal) of the last IP address of the network which can be assigned to a host is ________. |
| a. | 158 |
| b. | 255 |
| c. | 222 |
| d. | 223 |
| View Answer Report Discuss Too Difficult! Search Google |
|
Answer: (a).158
|
| 55. | If a Company require 60 hosts then What is the best possible subnet mask? |
| a. | 255.255.255.0 |
| b. | 255.255.255.192 |
| c. | 255.255.225.224 |
| d. | 225.225.255.240 |
| View Answer Report Discuss Too Difficult! Search Google |
|
Answer: (b).255.255.255.192
|
| 56. | In class C , if subnet mask is 255.255.255.224, then calculates number of subnet? |
| a. | 6 |
| b. | 8 |
| c. | 4 |
| d. | None of the Above |
| View Answer Report Discuss Too Difficult! Search Google |
|
Answer: (a).6
|
| 57. | A subnet has been assigned a subnet mask of 255.255.255.192. What is the maximum number of hosts that can belong to this subnet? |
| a. | 14 |
| b. | 30 |
| c. | 62 |
| d. | 126 |
| View Answer Report Discuss Too Difficult! Search Google |
|
Answer: (c).62
|
| 58. | A host is connected to a Department network which is part of a University network. The University network, in turn, is part of the Internet. The largest network in which the Ethernet address of the host is unique is: |
| a. | the subnet to which the host belongs |
| b. | the Department network |
| c. | the University network |
| d. | the Internet |
| View Answer Report Discuss Too Difficult! Search Google |
|
Answer: (d).the Internet
|
| 59. | In TCP, a unique sequence number is assigned to each |
| a. | byte |
| b. | word |
| c. | segment |
| d. | message |
| View Answer Report Discuss Too Difficult! Search Google |
|
Answer: (a).byte
|
| 60. | Which of the following objects can be used in expressions and scriplets in JSP (Java Server Pages) without explicitly declaring them? |
| a. | session and request only |
| b. | request and response only |
| c. | response and session only |
| d. | session, request and response |
| View Answer Report Discuss Too Difficult! Search Google |
|
Answer: (d).session, request and response
|
