Introduction to Networks Module 3 Check Your Understandings
routing
BGP and OSPF are examples of which type of protocol? network communication network security routing service discovery
False
Data Link addresses are physical so they never change in the data link frame from source to destination. True False
True
Frames exchanged between devices in different IP networks must be forwarded to a default gateway. True False
False
The right-most part of an IP address is used to identify the network that a device belongs to. True False
TCP
This protocol is responsible for guaranteeing the reliable delivery of information. TCP IP HTTP Ethernet
Internet Assigned Numbers Authority (IANA)
This standards organization is responsible for IP address allocation and domain name management. Internet Society (ISOC) Internet Engineering Task Force (IETF) Internet Architecture Board (IAB) Internet Assigned Numbers Authority (IANA)
True
True or false. Standards organizations are usually vendor-neutral. True False
segment
What is the PDU associated with the transport layer? segment packet bits frame
encapsulation
What is the name of the process of adding protocol information to data as it moves down the protocol stack? de-encapsulation sequencing segmentation encapsulation
Encoding
What is the process of converting information into the proper form for transmission? Formatting Encoding Encapsulation
Multicast
Which delivery method is used to transmit information to one or more end devices, but not all devices on the network? Unicast Multicast Broadcast
data link
Which protocol stack layer encapsulates data into frames? data link transport network application
Formatting
Which step of the communication process is concerned with properly identifying the address of the sender and receiver? Formatting Encoding Encapsulation
Flow control Access method Response timeout
Which three are components of message timing? (Choose three.) Flow control Sequence numbers Access method Retransmit time Response timeout
DNS DHCP
Which two protocols are service discovery protocols? (Choose two.) DNS TCP SSH DHCP
Internet Engineering Task Force (IETF)
This standards organization is concerned with the Request for Comments (RFC) documents that specify new protocols and update existing ones. Internet Society (ISOC) Internet Engineering Task Force (IETF) Internet Architecture Board (IAB) Internet Research Task Force (IRTF)
destination MAC, source MAC
What is the order of the two addresses in the data link frame? source MAC, destination MAC destination MAC, source IP destination IP, source IP destination MAC, source MAC source IP, destination IP
segmentation
What is the process of dividing a large data stream into smaller pieces prior to transmission? sequencing duplexing multiplexing segmentation
to uniquely label transmitted segments of data for proper reassembly by the receiver
What is the purpose of the sequencing function in network communication? to uniquely label transmitted segments of data for proper reassembly by the receiver to determine if data is corrupted during transmission to ensure data flows at an efficient rate between sender and receiver to guarantee delivery of data
subnet mask
What is used to determine the network portion of an IPv4 address? subnet mask MAC address right-most part of the IP address left-most part of the MAC address
electric wiring and connectors
What types of standards are developed by the Electronics Industries Alliance (EIA)? electric wiring and connectors radio equipment and cell towers video compression and broadband communications Voice over IP (VoIP) and satellite communications
Network layer addresses are logical and data link addresses are expressed as 12 hexadecimal digits Data link layer addresses are physical and network layer addresses are logical Network layer addresses are either 32 or 128 bits in length
Which of the following statements are true regarding network layer and data link layer addresses? (Choose three.) Data link layer addresses are logical and network layer addresses are physical. Network layer addresses are expressed as 12 hexadecimal digits and data link layer addresses are decimal. Network layer addresses are logical and data link addresses are expressed as 12 hexadecimal digits. Data link layer addresses are physical and network layer addresses are logical. Network layer addresses are either 32 or 128 bits in length. Data link layer addresses are 32 bits in length.
