Question 1

Optical fiber cords typically have two fiber strands.This is done to allow ________.

Accepted Answer

A)  redundancy 
B)  total redundancy 
C)  half-duplex operation 
D)  full-duplex operation 
A)  redundancy 
B)  total redundancy 
C)  half-duplex operation 
D)  full-duplex operation D

Question 2

Trunk links connect switches to ________ switches.

Accepted Answer

A)  core 
B)  workgroup 
C)  both A and B 
D)  neither A nor B 
A)  core 
B)  workgroup 
C)  both A and B 
D)  neither A nor B A

Question 3

At what layer is the 100BASE-TX standard?

Accepted Answer

A)  physical 
B)  data link 
C)  Internet 
D)  physical and data link 
A)  physical 
B)  data link 
C)  Internet 
D)  physical and data link A

Question 4

How long (in milliseconds)is a clock cycle if I transmit 400 Mbps with four states?

Accepted Answer

A)  0.000005 
B)  0.0025 
C)  0.005 
D)  none of the above 
A)  0.000005 
B)  0.0025 
C)  0.005 
D)  none of the above

Question 5

Physical layer standards govern ________.

Accepted Answer

A)  signaling 
B)  frames 
C)  packets 
D)  all of the above 
A)  signaling 
B)  frames 
C)  packets 
D)  all of the above

Question 6

What is binary 1111 in hex?

Accepted Answer

A)  10 
B)  13 
C)  14 
D)  15 
A)  10 
B)  13 
C)  14 
D)  15

Question 7

What 802 Working Group creates Ethernet standards?

Accepted Answer

A)  802.1 
B)  802.2 
C)  802.3 
D)  802.11 
A)  802.1 
B)  802.2 
C)  802.3 
D)  802.11

Question 8

Physical layer standards govern ________.

Accepted Answer

A)  signaling 
B)  physical connectors 
C)  both A and B 
D)  neither A nor B 
A)  signaling 
B)  physical connectors 
C)  both A and B 
D)  neither A nor B

Question 9

Which of the following provides security in Ethernet?

Accepted Answer

A)  RSTP 
B)  SNMP 
C)  VLANs 
D)  all of the above 
A)  RSTP 
B)  SNMP 
C)  VLANs 
D)  all of the above

Question 10

To manage their Ethernet networks,companies rely on ________.

Accepted Answer

A)  SNMP 
B)  HTTP 
C)  FTTH 
D)  none of the above 
A)  SNMP 
B)  HTTP 
C)  FTTH 
D)  none of the above

Question 11

What is binary 0010 in hex?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  none of the Above 
A)  1 
B)  2 
C)  3 
D)  none of the Above

Question 12

To transmit three bits per clock cycle,you must have ________ states.

Accepted Answer

A)  3 
B)  6 
C)  8 
D)  16 
A)  3 
B)  6 
C)  8 
D)  16

Question 13

Ethernet forwarding devices are ________.

Accepted Answer

A)  switches 
B)  routers 
C)  access points 
D)  both A and B 
A)  switches 
B)  routers 
C)  access points 
D)  both A and B

Question 14

What problem limits transmission distance in 4-pair UTP?

Accepted Answer

A)  reflection at the two ends 
B)  heat conduction 
C)  radiation 
D)  none of the above 
A)  reflection at the two ends 
B)  heat conduction 
C)  radiation 
D)  none of the above

Question 15

What is the quality designator for multimode optical fiber?

Accepted Answer

A)  Cat 
B)  OM 
C)  both A and B 
D)  neither A nor B 
A)  Cat 
B)  OM 
C)  both A and B 
D)  neither A nor B

Question 16

A system with 16 states can transmit ________ bits per clock cycle

Accepted Answer

A)  3 
B)  4 
C)  5 
D)  none of the above 
A)  3 
B)  4 
C)  5 
D)  none of the above

Question 17

850 nm multimode fiber is used in LANs ________.

Accepted Answer

A)  to keep cost low 
B)  to have the longest transmission distances 
C)  both A and B 
D)  neither A nor B 
A)  to keep cost low 
B)  to have the longest transmission distances 
C)  both A and B 
D)  neither A nor B

Question 18

In 4-pair UTP,what is twisted?

Accepted Answer

A)  individual wires 
B)  pairs of wires 
C)  all eight wires 
D)  none of the above 
A)  individual wires 
B)  pairs of wires 
C)  all eight wires 
D)  none of the above

Question 19

The 802.11ac Wi-Fi standard uses 256 states.How many bits can it send per clock cycle?

Accepted Answer

A)  8 
B)  16 
C)  32 
D)  none of the above 
A)  8 
B)  16 
C)  32 
D)  none of the above

Question 20

Signal state is held constant in a clock cycle ________.

Accepted Answer

A)  for energy efficiency 
B)  to make it easier for the receiver to sample the state 
C)  to emphasize differences between clock cycles 
D)  none of the above 
A)  for energy efficiency 
B)  to make it easier for the receiver to sample the state 
C)  to emphasize differences between clock cycles 
D)  none of the above

Optical fiber cords typically have two fiber strands.This is done to allow ________.

Trunk links connect switches to ________ switches.

At what layer is the 100BASE-TX standard?

How long (in milliseconds)is a clock cycle if I transmit 400 Mbps with four states?

Physical layer standards govern ________.

What is binary 1111 in hex?

What 802 Working Group creates Ethernet standards?

Physical layer standards govern ________.

Which of the following provides security in Ethernet?

To manage their Ethernet networks,companies rely on ________.

What is binary 0010 in hex?

To transmit three bits per clock cycle,you must have ________ states.

Ethernet forwarding devices are ________.

What problem limits transmission distance in 4-pair UTP?

What is the quality designator for multimode optical fiber?

A system with 16 states can transmit ________ bits per clock cycle

850 nm multimode fiber is used in LANs ________.

In 4-pair UTP,what is twisted?

The 802.11ac Wi-Fi standard uses 256 states.How many bits can it send per clock cycle?

Signal state is held constant in a clock cycle ________.

Core Network Concepts and Terminology

Network Standards

Network Management

Network Security

Wireless Lans I

Wireless Lans II

TCP/IP Internetworking I

TCP/IP Internetworking II

Carrier Wide Area Networks Wans

Networked Applications

Appendix: Managing the Security Process

Filters

Exam 5: Ethernet 802.3switched Lans

Optical fiber cords typically have two fiber strands.This is done to allow ________.

Trunk links connect switches to ________ switches.

At what layer is the 100BASE-TX standard?

How long (in milliseconds)is a clock cycle if I transmit 400 Mbps with four states?

Physical layer standards govern ________.

What is binary 1111 in hex?

What 802 Working Group creates Ethernet standards?

Physical layer standards govern ________.

Which of the following provides security in Ethernet?

To manage their Ethernet networks,companies rely on ________.

What is binary 0010 in hex?

To transmit three bits per clock cycle,you must have ________ states.

Ethernet forwarding devices are ________.

What problem limits transmission distance in 4-pair UTP?

What is the quality designator for multimode optical fiber?

A system with 16 states can transmit ________ bits per clock cycle

850 nm multimode fiber is used in LANs ________.

In 4-pair UTP,what is twisted?

The 802.11ac Wi-Fi standard uses 256 states.How many bits can it send per clock cycle?

Signal state is held constant in a clock cycle ________.

Core Network Concepts and Terminology

Network Standards

Network Management

Network Security

Wireless Lans I

Wireless Lans II

TCP/IP Internetworking I

TCP/IP Internetworking II

Carrier Wide Area Networks Wans

Networked Applications

Appendix: Managing the Security Process

Filters