Chapter 5 Flashcards
1
Q
Using DWDM, a single fiber can carry between what two numbers of channels? A) 60 B) 80 C) 160 D) 200
A
B) 80
C) 160
2
Q
What two items below are commonly expressed as bits transmitted per second? A) frequency B) amplitude C) throughput D) bandwidth
A
C) throughput
D) bandwidth
3
Q
What two connector types are typically used to terminate RG-6 and RG-59 cables? A) f-connectors B) BNC C) ST couplers D) J-hooks
A
A) f-connectors
B) BNC
4
Q
Frequencies used to convey speech over telephone lines fall between what two frequencies below? A) 100 Hz B) 300 Hz C) 3.3 KHz D) 5.5 KHz
A
B) 300 Hz
C) 3.3 KHz
5
Q
What is the maximum supported throughput and bandwidth / signal rate of Cat 5e? A) 100 Mbps B) 1000 Mbps C) 100 MHz D) 350 MHz
A
B) 1000 Mbps
D) 350 MHz
6
Q
What term below is used to describe the outer-most layer of protective covering of a coaxial cable? A) sheath B) shield C) braiding D) insulation
A
A) sheath
7
Q
What Ethernet standard below is also referred to as "thinnet"? A) 100Base2 B) 10Base2 C) 100BaseT D) 10BaseT
A
B) 10Base2
8
Q
What is the minimum category of UTP cable required in order to support Gigabit speeds? A) Cat 3 B) Cat 5 C) Cat 5e D) Cat 6
A
C) Cat 5e
9
Q
What is the maximum supported throughput of a CAT6 cable? A) 100 Mbps B) 1 Gbps C) 10 Gbps D) 100 Gbps
A
C) 10 Gbps
10
Q
How many cable pairs are needed for 1000Base-T transmission over CAT5e cable? A) 2 B) 4 C) 6 D) 8
A
B) 4
11
Q
Standard PoE devices must be provided with how much power in order to function? A) 5 watts B) 12 watts C) 15.4 watts D) 25.5 watts
A
C) 15.4 watts
12
Q
What is the maximum distance for 10GBase-ER and 10GBase-EW on a segment of single mode fiber? A) 550m B) 300m C) 10km D) 40km
A
D) 40km
13
Q
What type of cross-talk occurs between wire pairs near the source of a signal? A) far end cross talk B) near end cross talk C) alien cross talk D) pair migration cross talk
A
B) near end cross talk
14
Q
Which of the following connectors is the most common for mutlimode fiber? A) ST B) SC C) FC D) MT-RJ
A
D) MT-RJ
15
Q
A measure of a signal's strength at any given time is known as which term below? A) amplitude B) frequency C) phase D) wavelength
A
A) amplitude