Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
20 Cards in this Set
- Front
- Back
|
What two reasons for physical layer protocols to use frame encoding techniques |
To distinguish data bits from control bits To identify where the frame starts and ends |
|
|
What is indicated by the term throughput |
The measure of the bits transfered across the media over a given period of time |
|
|
Which two factors interfere with copper cables |
EMI RFI |
|
|
Which characteristic describes crosstalk |
The distortion of the transmitted messages from signals carried in adjacent waves |
|
|
What technique is used with UTP cable to help protect against signal interference from crosstalk. |
Twisting the wires together in pairs |
|
|
Which type of UTP cables can be used to connect the devices |
Rollover straight through crossover |
|
|
What type of connector does a network interface card use? |
Rj 45 |
|
|
What is one advantage of using fibre optic cabling rather than copper cabling |
It is able to carry signals much fastet |
|
|
Why are two strands of fibre used for a single fibre optic connection? |
They allow for full duplex connectivity |
|
|
A network administrator is designing the layout of a new wireless network. Which areas need to be considered |
Security Interference Coverage area |
|
|
Which layer of the osi model is responsible for specifying the encapsulation method used for specific types of media. |
Data link |
|
|
What two services performed by the data link layer of the osi model |
It accepts layer 3 packets and encapsulates them into frame It provides media access control and performs error detection |
|
|
What is true concerning physical and logical topologies |
Logical topologies refer to how a network transfers data between devices |
|
|
Which method of data transfer allows information to be sent and received at tge same time? |
Full duplex |
|
|
Which statement describes an extended star topology |
End devices connect to a central intermediate device. Which in turn connects to other central immediate devices |
|
|
What is contained in the trailer of data link frame |
Error detection |
|
|
As data travels on the media in a stream of 1s and 0s how does a receiving node identify the beginning and end of a frame |
The transmitting node inserts start and stop bits into the frame |
|
|
What is the function of the crc value that is found in the fcs field of a frame |
To verify the integrity of the received frame |
|
|
The term bandwidth indicates the capacity of a medium to carry data and it is typically measured in kbs or mbs |
Bandwidth |
|
|
What acronym is used to reference the data link sublet that identifies the network layer protocol encapsulated in the frame? |
LLC |
