WorksheetsCOMPNET REVIEW QUIZ 2
Total questions: 29
Worksheet time: 21mins
The unit of data sent or received at the application layer.
message
datagram
frame
packet
The unit of data sent or received at the network layer.
message
datagram
frame
bit
The unit of data sent or received at the data-link layer.
message
datagram
frame
segment
Which of the following data units is encapsulated in a frame?
message
datagram
user datagram
segment
Which of the following data units is decapsulated from a user datagram?
message
datagram
frame
segment
A vehicle for accessing the World Wide Web (www).
Hypertext Transfer Protocol (HTTP)
Simple Network Management Protocol (SNMP)
File Transfer Protocol (FTP)
Internet Group Management Protocol (IGMP)
The port address is used in the ____________ layer of TCP/IP.
application
transport
network
data-link
The logical address is used in the ____________ layer of TCP/IP.
application
transport
network
data-link
The specific addresses (ex. e-mail address and URL) is used in the ____________ layer of TCP/IP.
application
transport
network
data-link
The physical addresses is used in the ____________ layer of TCP/IP.
application
transport
network
data link
There is no encapsulation & decapsulation occurs at the router.
True
False
Decapsulation at the source host starts at the physical layer until the message reaches the application layer.
True
False
Encapsulation at the destination host starts at the application layer until the frame is passed to the physical layer for transmission
True
False
A router is needed when there is more than one path between two hosts.
True
False
A switch is needed when we need to change a one-to-many communication to a one-to-one.
True
False
The services provided by UDP are different from the services provided by TCP.
True
False
The transport layer is responsible for route determination.
True
False
The OSI model replaced the TCP/IP protocol suite because it was completed when TCP/IP was fully in place.
True
False
Two protocols at the same layer can have a physical connection.
True
False
Logical connection is only possible through the physical layers.
True
False
A protocol can decapsulate and deliver a packet to several next-higher
layer protocols (one at a time).
(a)
A protocol at a layer can encapsulate a packet from several next-higher
layer protocols (one at a time).
(a)
To be able to multiplex and demultiplex, a (a) needs to have a field in its
header to identify to which protocol the encapsulated packets belong.
The OSI model is a layered framework for the design of a network system that allows communication between all types of computer systems. It consists of (a) layers.
The second principle that we need to follow in protocol layering is that the two (a) under each layer on both sides should be identical.
The first principle dictates that if we want bidirectional communication, we need to
make each layer so that it can perform two (a) tasks, one in each direction.
The logical connection of the data link and physical layers is hop-to-hop, in
which a (a) is a host or a router.
The physical layer does not need (a) because the unit of data exchange at the physical layer is a bit.
Which of the following statements is true about transport and application layer protocols?
(you may choose more than one answer)
File Transfer Protocol (FTP) is used for transferring files from one host to another.
Domain Network System (DNS) is used by other protocols to find the network-layer address of a computer.
Terminal Network (TELNET) and Secure Shell (SSH) are used for accessing a site remotely.
User Datagram Protocol (UDP) is a connectionless protocol that
transmits user datagrams without first creating a logical connection.
Stream Control Transmission Protocol (SCTP) is designed to
respond to new applications that are emerging in multimedia.
