Question 1

What frequency band is used by 802.11ac?

Accepted Answer

A) 5GHz 
B) 2)4GHz 
C) 6GHz 
D) 2GHz A

Question 2

Which OSI layer combines messages or segments into packets?

Accepted Answer

A) Physical 
B) Transport 
C) Network 
D) Data Link 
E) None of these answers are correct. C

Question 3

Which OSI layer is considered the media access control layer?

Accepted Answer

A) Data Link 
B) Transport 
C) Presentation 
D) Application 
E) None of these answers are correct. A

Question 4

Your Windows 8 system Control Panel has been left in the default configuration.What major grouping would you enter in order to manipulate the Network Interface Card settings?

Accepted Answer

A) Network and Internet 
B) LAN and Computers 
C) Computers and Users 
D) Systems

Question 5

What is PAT?

Accepted Answer

A) Port address translation; it is used to store the home network's IP address and port numbers in a NAT lookup table. 
B) Port address translation; it is used to store the home network's MAC address and port numbers in a NAT lookup table. 
C) Port address translation; it is used to store the home network's public IP address and port numbers in a NAT lookup table. 
D) Port address transfer; it is used to store the home network's MAC address and port numbers in a NAT lookup table.

Question 6

You need to troubleshoot the wireless settings for your adapter in a Windows 8 environment.What section of Control Panel do you use?

Accepted Answer

A) Computers and Networking 
B) Network Connections 
C) Wireless Command Center 
D) Network and Sharing Center

Question 7

Which OSI layer is responsible for adding a header that includes information used in routing?

Accepted Answer

A) Data Link 
B) Application 
C) Physical 
D) Network

Question 8

What is a possible transfer rate in a 802.11ac wireless network?

Accepted Answer

A) 100Mbps 
B) 10Mbps 
C) 500Mbps 
D) 1Gbps

Question 9

The OSI layer responsible for data compression and encryption is which of these?

Accepted Answer

A) Transport 
B) Presentation 
C) Application 
D) network 
E) None of these answers are correct.

Question 10

In regards to NAT,what is overloading?

Accepted Answer

A) Where NAT assigns the home network's IP address to a non-routable public IP address 
B) Where NAT assigns the home network's IP address to a single public IP address 
C) Where NAT assigns the home network's IP addresses to a single public IP address 
D) Where NAT assigns the home network's PAT IP address to a public NAT IP address

Question 11

Which OSI layer is responsible for the mechanical connection to the network?

Accepted Answer

A) Network 
B) Transport 
C) Data Link 
D) None of these answers are correct.

Question 12

MAC is the acronym for multimedia access controller.True or False?

Accepted Answer

A) True 
 B)False

Question 13

What is the purpose of a range extender?

Accepted Answer

A) It relays the wireless signals from an access point or wireless router into areas with a weak signal or no signal at all. 
B) It is used to extend the tuning range of the wireless router so both TCP and UDP data traffic can be received. 
C) It is used with fiber optics to extend the distance. 
D) None of these answers are correct.

Question 14

What is the purpose of a wireless router?

Accepted Answer

A) This device is used to connect only wireless devices to a broadband Internet connection. 
B) This device is used to interconnect both wireless and wired devices and establish the broadband connection to the Internet. 
C) This device is used only in intranets. 
D) This device is used in token-ring networks to manage the passing of the token.

Question 15

What is the Wi-Fi Alliance?

Accepted Answer

A) An organization that tests and certifies wireless equipment for compliance with the 805.3 standards 
B) An organization that tests and certifies wireless equipment for compliance with the RS-232C standards 
C) An organization that tests and certifies wireless equipment for compliance with the 802.11x standards 
D) An organization that tests and certifies wireless equipment for compliance with the 858.n standards

Question 16

Excessive amounts of broadcasts on a network are called a broadcast storm.True or False?

Accepted Answer

A) True 
 B)False

Question 17

The preamble on the Ethernet packet is used to provide synchronization and negotiation of a data link.True or False?

Accepted Answer

A) True 
 B)False

Question 18

What is the goal of WPS in wireless networking today?

Accepted Answer

A) To allow a home user to connect many more devices to the wireless network 
B) To permit the configuration of multiple access points in the home network 
C) To allow printing over the wireless network 
D) To allow the configuration of security without the user inputting a long complex string of characters

Question 19

The acronym TCP/IP stands for Transmission Controller Protocol/Intercommunication Protocol.True or False?

Accepted Answer

A) True 
 B)False

Question 20

There are 34 bits and 4 octets in an IPv4 address.True or False?

Accepted Answer

A) True 
 B)False

Exam 1: Introduction to Computer Networks

What frequency band is used by 802.11ac?

Which OSI layer combines messages or segments into packets?

Which OSI layer is considered the media access control layer?

Your Windows 8 system Control Panel has been left in the default configuration.What major grouping would you enter in order to manipulate the Network Interface Card settings?

What is PAT?

You need to troubleshoot the wireless settings for your adapter in a Windows 8 environment.What section of Control Panel do you use?

Which OSI layer is responsible for adding a header that includes information used in routing?

What is a possible transfer rate in a 802.11ac wireless network?

The OSI layer responsible for data compression and encryption is which of these?

In regards to NAT,what is overloading?

Which OSI layer is responsible for the mechanical connection to the network?

MAC is the acronym for multimedia access controller.True or False?

What is the purpose of a range extender?

What is the purpose of a wireless router?

What is the Wi-Fi Alliance?

Excessive amounts of broadcasts on a network are called a broadcast storm.True or False?

The preamble on the Ethernet packet is used to provide synchronization and negotiation of a data link.True or False?

What is the goal of WPS in wireless networking today?

The acronym TCP/IP stands for Transmission Controller Protocol/Intercommunication Protocol.True or False?

There are 34 bits and 4 octets in an IPv4 address.True or False?