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Worksheetsc.i.s.c.o
Total questions: 20
Worksheet time: 40mins
Which of the following describes the function of a WAN?
provides connectivity over a large geographic area
provides connectivity on a LAN
connects multiple networks in a single building
connects peripherals in a single location
During the encapsulation process, what occurs at the data link layer?
No address is added
The physical address is added
read only memory is added
flash memory is added
What is the proper order of the layers of the OSI model from the highest layer to the lowest layer?
application, presentation, session, transport, network, data link, physical
application, presentation, physical, session, data link, transport, network
presentation, data link, session, transport, network, physical, application
physical, network, application, data link, presentation, session, transport
What application layer protocol is commonly used to support for file transfers between a client and a server?
Telnet
FTP
HTTP
HTML
As compared to SSH, what is the primary disadvantage of telnet?
not widely available
does not support encryption
consumes more network bandwidth
does not support authentication
Which intermediary devices could be used to implement security between networks?
switch
hub
firewall
bridge
What's common problem with a large network?
protocol compatibility
security issues
too few broadcasts
limited management responsibility
What is the primary reason for development of IPv6?
security
header format simplification
addressing simplification
expanded addressing capabilities
How many bits make up an IPv4 address?
32
128
1024
64
What is a function of the data link layer?
provides the formatting of data
provides end-to-end delivery of data between hosts
provides delivery of data between two applications
provides for the exchange data over a common local media
What is the picture above an example of
router
RJ-45
cable link
port
Which OSI layer is responsible for binary transmission, cable specification, and physical aspects of network communication?
presentation
transport
application
physical
Which method of signal transmission uses radio waves to carry signals?
wireless
electrical
optical
acoustic
In most business LANs, which connector is used with twisted-pair networking cable?
BNC
RJ-11
RJ-45
type-F
What is considered a benefit of wireless as a media choice?
more host mobility
reduced susceptibility to interference
lower security risks
less impact of the surroundings on the effective coverage area
What characteristic of UTP cable helps reduce the effects of interference?
the reflective cladding around core
the twisting of the wires in the cable
the metal braiding in the shielding
the insulating material in the outer jacket
Refer to the exhibit. Which logical topology describes the exhibited network?
star
ring
point to point
bus
When device A has a cable that plugs into device B, and device B has a cable that plugs into device C and device C plugs into a port on the computer, this arrangement is called a _________
daisy chain
port
bus
cable
What is the ready state of a process?
when process is scheduled to run after some execution
when process is unable to run until some task has been completed
when process is using the CPU
none of the mentioned
What is not a role of encryption?
it is used to protect data from unauthorized access during transmission
it is used to ensure user authentication
it is used to ensure data integrity
it is used to ensure data corruption doesn’t happens
