Telecommunications/Networking: Quiz 1

The process of a web server adding a TCP header to the contents of a web page, followed by adding an IP header and then adding a data link header and trailer, is an example of what? a)same-layer interaction b)OSI model c)all of these answers are correct d)data encapsulation

D) Data encapsulation

In the LAN for a small office, some user devices connect to the LAN using a cable, while others connect using wireless technology (and no cable). Which of the following is true regarding the use of Ethernet in this LAN? a)Only the devices that use cables are using Ethernet. b)Only the devices that use wireless are using Ethernet. c)Both the devices using cables and those using wireless are using Ethernet. d)None of the devices are using Ethernet.

A) Only the devices that use cables are using Ethernet

The process of TCP on one computer marking a TCP segment as segment 1, and the receiving computer then acknowledging the receipt of TCP segment 1 is an example of what? a)same-layer interaction b)adjacent-layer interaction c)OSI model d)all of these answers are correct e)data encapsulation

A) Same-layer interaction

Which of the following protocols are examples of TCP/IP transport layer protocols? (Choose two answers.) a)UDP b)IP c)HTTP d)Ethernet e)TCP F)SMTP

A) UDP E) TCP

Which of the following terms describe Ethernet addresses that can be used to send one frame that is delivered to multiple devices on the LAN? (Choose two answers.) a)unicast address b)broadcast address c)multicast address d)burned-in address

B) Broadcast address C) Multicast address

Each answer lists two types of devices used in a 100BASE-T network. If these devices were connected with UTP Ethernet cables, which pairs of devices would require a straight-through cable? (Choose three answers.) a)PC and router b)PC and switch c)hub and switch d)router and hub e)wireless access point (Ethernet port) and switch

B) PC and switch D) Router and hub E) Wireless access (Ethernet port) and switch

Which of the following terms is used specifically to identify the entity created when encapsulating data inside data link layer headers and trailers? a)chunk b)segment c)frame d)packet e)data

C) Frame

Which of the following is true about Ethernet crossover cables for Fast Ethernet? a)none of these answers is correct b)the cable can be up to 1000 meters long to cross over between buildings. c)Pins 1 and 2 on one end of the cable connect to pins 3 and 4 on the other end of the cable. c)Pins 1 and 2 on one end of the cable connect to pins 3 and 6 on the other end of the cable. d)Pins 1 and 2 are reversed on the other end of the cable.

C) Pins 1 and 2 on one end of the cable connect to pins 3 and 6 on the other end of the cable

Which of the following is true about the Ethernet FCS field? a)Ethernet uses FCS for error recovery. b)It is used for encryption. c)It resides in the Ethernet trailer, not the Ethernet header. d)It is 2 bytes long.

C) it resides in the Ethernet trailer, not the Ethernet header

Which OSI layer defines the functions of logical network-wide addressing and routing? a)layer 2 b)layer 1 c)layers 5, 6, and 7 d)layer 4 e)layer 3

E) Layer 3