Computer Networking
Computers cannot communicate with each other directly over telephone lines because they use digital pulses whereas telephone lines use analog sound frequencies. What is the name of the device which permits digital to analog conversion at the start of a long distance transmission?

Teleprocessor
Attenuation
Modem
Interface
None of these

ANSWER DOWNLOAD EXAMIANS APP

Computer Networking
The Token-Ring architecture was developed for a more efficient way to determine who should be transmitting at any one time. With Ethernet, collisions may take place, causing the transmitting computers to have to retransmit their data. The use of token guarantees that only one computer can transmit at a time. What happens as the network increases in size? Choose the best answer

The network becomes less efficient
An additional token is added for every 1,000 nodes
The network becomes more efficient
The speed of the Token-Ring network must be 16Mbps if the number of nodes is greater then 500
After the number of nodes exceeds 550, the Multistation Access Unit must be replaced by the more powerful Hyperstation Unified Bandwidth device

ANSWER DOWNLOAD EXAMIANS APP

Computer Networking
Which two of the following are true regarding the distance-vector and link-state routing protocols?1. Link state sends its complete routing table out all active interfaces on periodic time intervals.2. Distance vector sends its complete routing table out all active interfaces on periodic time intervals.3. Link state sends updates containing the state of its own links to all routers in the internetwork.4. Distance vector sends updates containing the state of its own links to all routers in the internetwork.

2 and 3 only
3 only
None of these
1 only

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Computer Networking