Question 1

High-bandwidth communications systems are sometimes referred to as ____________________.

Accepted Answer

The answer of High-bandwidth communications systems are sometimes referred to...

Question 2

In a wireless ____ network,devices broadcast directly to each other.

Accepted Answer

A)  ad-hoc 
B)  infrastructure 
C)  embedded 
D)  SSID

Question 3

____________________ switching essentially establishes a private link between one telephone and another for the duration of a call.

Accepted Answer

The answer of ____________________ switching essentially establishes a private link...

Question 4

A(n)____ is the basis for scrambling and unscrambling the data transmitted between wireless devices.

Accepted Answer

A)  active link 
B)  wireless encryption key 
C)  PSK 
D)  algorithm

Question 5

Which of the following is NOT true about Wi-Fi standards?

Accepted Answer

A)  IEEE 802.11b is the original standard. 
B)  All of the standards are cross compatible. 
C)  IEEE 802.11a is not compatible with 802.11b. 
D)  IEEE 802.11n is faster than, but compatible with, b and g.

Question 6

IP addresses can be assigned by ISPs or system managers.

Accepted Answer

A) True 
 B)False

Question 7

MATCHING
Identify the letter of the choice that best matches the phrase or definition.
-An encrypted message

Accepted Answer

A) cryptographic key 
B) ciphertext 
C) gateway 
D) node 
E) narrowband
F)infrared light
G)communications protocol
H)bandwidth
I)MAC address
J)Ethernet adapter
K)packet
L)RF signals

Question 8

What is the difference between strong encryption and weak encryption? Explain how Public Key Encryption (PKE)can be used to provide strong encryption.

Accepted Answer

The answer of What is the difference between strong encryption...

Question 9

The Internet is the world's largest example of a(n)LAN._________________________

Accepted Answer

A) True 
 B)False

Question 10

Dial-up Internet access is an example of a(n)____ communications system.

Accepted Answer

A)  broadband 
B)  fireband 
C)  narrowband 
D)  Internet 2

Question 11

A ____ is a word,number,or phrase that must be known to encrypt or decrypt a message.

Accepted Answer

A)  cryptographic index 
B)  rank 
C)  cryptographic key 
D)  message

Question 12

Esteban has decided to install a computer network in his home. He knows he can choose wired or wireless and that there are differences in transmission speed and security.
-The signal on Esteban's wireless network is weak.What is the best solution to this problem?

Accepted Answer

A)  Make sure to be using the correct password and that the password has not expired. 
B)  Make sure that the wireless networking switch is in the On position for networking. 
C)  Move the workstation closer to the router, if possible. 
D)  Make sure that the network hub, switch, router, or wireless access point is plugged in and functioning properly.

Question 13

Computers without Wi-Fi or those with slow Wi-Fi protocols can be upgraded using a Wi-Fi ____.

Accepted Answer

A)  FireWire 
B)  adapter 
C)  port 
D)  cable

Question 14

MATCHING
Identify the letter of the choice that best matches the phrase or definition.
-Carries data signals only for short distances and with a clear line of sight

Accepted Answer

A) cryptographic key 
B) ciphertext 
C) gateway 
D) node 
E) narrowband
F)infrared light
G)communications protocol
H)bandwidth
I)MAC address
J)Ethernet adapter
K)packet
L)RF signals

Question 15

-In the accompanying figure,the lock icon indicates a network secured with wired encryption._________________________

Accepted Answer

A) True 
 B)False

Question 16

Most routers ship with a(n)____ predefined by the manufacturer.

Accepted Answer

A)  gateway 
B)  ISP 
C)  SSID 
D)  topology

Question 17

High-bandwidth communications systems,such as cable TV and DSL,are sometimes referred to as peakband._________________________

Accepted Answer

A) True 
 B)False

Question 18

A(n)____________________ is any device that contains network circuitry to directly connect to a network.

Accepted Answer

The answer of A(n)____________________ is any device that contains network...

Question 19

____ is a wireless MAN or WAN technology commonly used for fixed Internet access.

Accepted Answer

A)  FCC 
B)  WiMAX 
C)  Bluetooth 
D)  Ethernet

Question 20

To connect to a LAN,a computer requires ____.

Accepted Answer

A)  a peer-to-peer network 
B)  network attached storage 
C)  a network interface card 
D)  a client

Exam 5: Local Area Networks

High-bandwidth communications systems are sometimes referred to as ____________________.

In a wireless ____ network,devices broadcast directly to each other.

____________________ switching essentially establishes a private link between one telephone and another for the duration of a call.

A(n) ____ is the basis for scrambling and unscrambling the data transmitted between wireless devices.

Which of the following is NOT true about Wi-Fi standards?

IP addresses can be assigned by ISPs or system managers.

MATCHING Identify the letter of the choice that best matches the phrase or definition. -An encrypted message

What is the difference between strong encryption and weak encryption? Explain how Public Key Encryption (PKE)can be used to provide strong encryption.

The Internet is the world's largest example of a(n)LAN._________________________

Dial-up Internet access is an example of a(n) ____ communications system.

A ____ is a word,number,or phrase that must be known to encrypt or decrypt a message.

Esteban has decided to install a computer network in his home. He knows he can choose wired or wireless and that there are differences in transmission speed and security. -The signal on Esteban's wireless network is weak.What is the best solution to this problem?

Computers without Wi-Fi or those with slow Wi-Fi protocols can be upgraded using a Wi-Fi ____.

MATCHING Identify the letter of the choice that best matches the phrase or definition. -Carries data signals only for short distances and with a clear line of sight

-In the accompanying figure,the lock icon indicates a network secured with wired encryption._________________________

Most routers ship with a(n) ____ predefined by the manufacturer.

High-bandwidth communications systems,such as cable TV and DSL,are sometimes referred to as peakband._________________________

A(n)____________________ is any device that contains network circuitry to directly connect to a network.

____ is a wireless MAN or WAN technology commonly used for fixed Internet access.

To connect to a LAN,a computer requires ____.