What does the term "attenuation" mean in data communication?
1 loss of signal strength as distance increases
2 time for a signal to reach its destination
3 leakage of signals from one cable pair to another
4 strengthening of a signal by a networking device
Answers were Sorted based on User's Feedback
Answer / jitendera kumar sinha
attenuation is conserned with loss of signal strength as
distance increase
so coorect answer is 1
Is This Answer Correct ? | 14 Yes | 2 No |
Answer / abebe alambo
Attenuation:
->is decrease in signal amplitude over the length of a link.
->is the gradual loss in intensity of any kind of flux
through a medium.
->Or it is simply known as transmission loss.
Is This Answer Correct ? | 4 Yes | 0 No |
Answer / a gim
The ratio of a signal strength at the transmitting and
receiving ends of a cable.
Correct answer is 1.
Is This Answer Correct ? | 2 Yes | 3 No |
Sequence and acknowledgement numbers are used for? A.) Layer transitioning B.) Flow control C.) Port number addressing D.) Reliability
What is the juncture at which the CPE ends and the local loop portion of the service begins? A. Demarc B. CO C. Local loop D. Last-mile
What information can you get from CDP info: (choose all that apply) A.) Hardware platform B.) One address per protocol C.) Software platform D.) Hostname E.) The same info as show version F.) Incoming/outgoing port
Routers that have Flash memory typically have a ore loaded copy of place IOS software. Which command should you use to make a backup copy of the software image onto a given network server? A. copy flash tftp B. save copy to tftp C. write backup tftp D. write, backup -server-name- E. copy backup to -server-name-
Why do you use ‘service password encryption’?
Which layer allows multiple Ethernet devices to uniquely identify one another on the Datalink layer? A.) Transport B.) Session C.) Network D.) Datalink - MAC Sublayer E.) Datalink - LLC Sublayer
What is CRC and which layer it use?
What are the advantages of using switches?
Identify 3 methods used to prevent routing loops? A.) Split horizon B.) Holddown timers C.) Poison reverse D.) SPF algorithm E.) LSP's
What is the protocol number for TCP? A.) 80 B.) 21 C.) 11 D.) 6
10. Which STP state populates the MAC address table but doesn't forward data frames? A. Blocking B. Listening C. Learning D. Forwarding
3. What does a bridge use to segment a network? A. IP Addresses B. Broadcasts C. Application data D. Media Access Control addresses