Data Communication and Networking

1-->For cost reasons, you should ________ where you can, ________ where you must.

A. switch; switch

B. route; route

C. switch; route

D. D. route; switch

2-->TCP/IP standards are set at the ________.

A. physical layer

B. transport layer

C. both A and B

D. neither A nor B

3-->In a routing table, a ________ represents a route for a group of IP addresses.

• A. row

• B. column

• C. schema

• D. metric

4-->If no other row matches, the router will select the ________ row as its best match.

• A. First

• B. Last

• C. either A or B, depending on the circumstances

• D. neither A nor B

5-->The second step in the routing process involves ________.

• A. selecting the best-match row

• B. comparing the packet's destination IP address to all rows

• C. comparing the packet's destination IP address to matching rows

• D. selecting an interface

6-->Router ports are called ______.

• A. sockets

• B. plugs

• C. interfaces

• D. ports

7-->If a router receives 20 packets in a row going to the same destination IP address, the standard calls for it to ________.

A. go through all three steps for each

B. use the decision it made for the first one

C. send them via different routers to create load balancing along different routes

D. none of the above

8-->Which is a problem with IPv4 addresses?

• A. They are incompatible with wireless devices.

• B. They are too complex.

• C. Routers find it difficult to handle them.

• D. We have run out of them.

9-->In IPv6 addresses, ________ are separated by ________.

A. segments; dots

B. segments; colons

C. fields; dots

D. fields; colons