Network Module 3 Practice Questions

Which protocol operates at the network access layer of the TCP/IP model? A. HTTP B. IP C. DNS D. Ethernet

D. Ethernet

Which two protocols are service discovery protocols? (Choose two.) A. DNS B. TCP C. SSH D. DHCP

A. DNS D. DHCP

Which three are components of message timing? (Choose three.) A. Flow control B. Sequence numbers C. Access method D. Retransmit time E. Response timeout

A. Flow control C. Access method E. Response timeout

Which step of the communication process is concerned with properly identifying the address of the sender and receiver? A. Formatting B. Encoding C. Encapsulation

A. Formatting

Which three acronyms/initialisms represent standards organizations? (Choose three.) A. IANA B. IETF C. TCP/IP D. IEEE E. MAC F. OSI

A. IANA B. IETF D. IEEE

What is done to an IP packet before it is transmitted over the physical medium? A. It is encapsulated in a Layer 2 frame. B. It is encapsulated into a TCP segment. C. It is tagged with information guaranteeing reliable delivery. D. It is segmented into smaller individual pieces.

A. It is encapsulated in a Layer 2 frame.

This protocol is responsible for guaranteeing the reliable delivery of information. A. TCP B. IP C. HTTP D. Ethernet

A. TCP

True or false. Standards organizations are usually vendor-neutral. A. True B. False

A. True

True or false? Frames exchanged between devices in different IP networks must be forwarded to a default gateway. A. True B. False

A. True

What type of communication will send a message to all devices on a local area network? A. broadcast B. allcast C. unicast D. multicast

A. broadcast

Which message delivery option is used when all devices need to receive the same message simultaneously? A. broadcast B. duplex C. unicast D. multicast

A. broadcast

Which protocol stack layer encapsulates data into frames? A. data link B. transport C. network D. application

A. data link

What types of standards are developed by the Electronics Industries Alliance (EIA)? A. electric wiring and connectors B. radio equipment and cell towers C. video compression and broadband communications D. Voice over IP (VoIP) and satellite communications

A. electric wiring and connectors

What is the PDU associated with the transport layer? A. segment B. packet C. bits D. frame

A. segment

What is used to determine the network portion of an IPv4 address? A. subnet mask B. MAC address C. right-most part of the IP address D. left-most part of the MAC address

A. subnet mask

What is the purpose of the sequencing function in network communication? A. to uniquely label transmitted segments of data for proper reassembly by the receiver B. to determine if data is corrupted during transmission C. to ensure data flows at an efficient rate between sender and receiver D. to guarantee delivery of data

A. to uniquely label transmitted segments of data for proper reassembly by the receiver

Which two protocols belong in the TCP/IP model application layer? A. EIGRP B. DNS C. OSPF D. ICMP E. DHCP

B. DNS

What is the process of converting information into the proper form for transmission? A. Formatting B. Encoding C. Encapsulation

B. Encoding

True or False? Data Link addresses are physical so they never change in the data link frame from source to destination. A. True B. False

B. False

True or false? The right-most part of an IP address is used to identify the network that a device belongs to. A. True B. False

B. False

This standards organization is concerned with the Request for Comments (RFC) documents that specify new protocols and update existing ones. A. Internet Society (ISOC) B. Internet Engineering Task Force (IETF) C. Internet Architecture Board (IAB) D. Internet Research Task Force (IRTF)

B. Internet Engineering Task Force (IETF)

Which delivery method is used to transmit information to one or more end devices, but not all devices on the network? A. Unicast B. Multicast C. Broadcast

B. Multicast

What process is used to receive transmitted data and convert it into a readable message? A. flow control B. decoding C. access control D. encapsulation

B. decoding

What process is used to place one message inside another message for transfer from the source to the destination? A. access control B. encapsulation C. decoding D. flow control

B. encapsulation

What is the general term that is used to describe a piece of data at any layer of a networking model? A. packet B. protocol data unit C. segment D. frame

B. protocol data unit

UDP and TCP belong to which layer of the TCP/IP protocol? A. application B. transport C. internet D. network access

B. transport

Which layer of the OSI model defines services to segment and reassemble data for individual communications between end devices? A. network B. transport C. application D. session E. presentation

B. transport

Which two protocols function at the internet layer? (Choose two.) A. BOOTP B. POP C. ICMP D. PPP E. IP

C. ICMP E. IP

Which of the following are protocols that provide feedback from the destination host to the source host regarding errors in packet delivery? (Choose two.) A. IPv4 B. TCP C. ICMPv4 D. IPv6 E. UDP F. ICMPv4

C. ICMPv4 F. ICMPv4

A device receives a data link frame with data and processes and removes the Ethernet information. What information would be the next to be processed by the receiving device? A. HTTP at the application layer B. HTML at the application layer C. IP at the internet layer D. UDP at the internet layer E. TCP at the transport layer

C. IP at the internet layer

Which of the following statements are true regarding network layer and data link layer addresses? (Choose three.) A. Data link layer addresses are logical and network layer addresses are physical. B. Network layer addresses are expressed as 12 hexadecimal digits and data link layer addresses are decimal. C. Network layer addresses are logical and data link addresses are expressed as 12 hexadecimal digits. D. Data link layer addresses are physical and network layer addresses are logical. E. Network layer addresses are either 32 or 128 bits in length. F. Data link layer addresses are 32 bits in length.

C. Network layer addresses are logical and data link addresses are expressed as 12 hexadecimal digits. D. Data link layer addresses are physical and network layer addresses are logical. E. Network layer addresses are either 32 or 128 bits in length.

Which services are provided by the internet layer of the TCP/IP protocol suite? (Choose three.) A. File Transfer B. Address Resolution C. Routing Protocols D. Messaging E. Ethernet F. Internet Protocol

C. Routing Protocols D. Messaging F. Internet Protocol

Which type of communication will send a message to a group of host destinations simultaneously? A. anycast B. broadcast C. multicast D. unicast

C. multicast

BGP and OSPF are examples of which type of protocol? A. network communication B. network security C. routing D. service discovery

C. routing

A web client is sending a request for a webpage to a web server. From the perspective of the client, what is the correct order of the protocol stack that is used to prepare the request for transmission? A. Ethernet, TCP, IP, HTTP B. HTTP, IP, TCP, Ethernet C. Ethernet, IP, TCP, HTTP D. HTTP, TCP, IP, Ethernet

D. HTTP, TCP, IP, Ethernet

This standards organization is responsible for IP address allocation and domain name management. A. Internet Society (ISOC) B. Internet Engineering Task Force (IETF) C. Internet Architecture Board (IAB) D. Internet Assigned Numbers Authority (IANA)

D. Internet Assigned Numbers Authority (IANA)

What are two benefits of using a layered network model? (Choose two.) A. It speeds up packet delivery. B. It prevents designers from creating their own model. C. It ensures a device at one layer can function at the next higher layer. D. It prevents technology in one layer from affecting other layers. E. It assists in protocol design.

D. It prevents technology in one layer from affecting other layers. E. It assists in protocol design.

Which logical address is used for delivery of data to a remote network? A. destination port number B. destination MAC address C. source IP address D. destination IP address E. source MAC address

D. destination IP address

What is the order of the two addresses in the data link frame? A. source MAC, destination MAC B. destination MAC, source IP C. destination IP, source IP D. destination MAC, source MAC E. source IP, destination IP

D. destination MAC, source MAC

What is the name of the process of adding protocol information to data as it moves down the protocol stack? A. de-encapsulation B. sequencing C. segmentation D. encapsulation

D. encapsulation

What is the purpose of protocols in data communications? A. dictating the content of the message sent during communication B. specifying the bandwidth of the channel or medium for each type of communication C. specifying the device operating systems that will support the communication D. providing the rules required for a specific type of communication to occur

D. providing the rules required for a specific type of communication to occur

What is the process of dividing a large data stream into smaller pieces prior to transmission? A. sequencing B. duplexing C. multiplexing D. segmentation

D. segmentation

In computer communication, what is the purpose of message encoding? A. to break large messages into smaller frames B. to interpret information C. to negotiate correct timing for successful communication D. to convert information to the appropriate form for transmission

D. to convert information to the appropriate form for transmission