WorksheetsComputer science
Total questions: 81
Worksheet time: 2hrs 9mins
Collection of devices connected with each other
DTR
Network
SAN
MAN
Advantages of computer networks ?
Simple
Available
Sharing of resources
Centralized management
High speed access
All these networks depend on size except :
LAN
WAN
MAN
SAN
All are disadvantage of Wan Network except;
Congestion
Wide area networks
Security problems
Error rate is maximum
Is the collection of devices connected with each other
(a)
Is the number of devices are increased on a network without degrading at the performance;
(a)
Features of computer network (mention all the seven features with explanations )
Advantages and disadvantages of LAN network:
Advantages and disadvantages of MAN network:
Advantages and disadvantages of WAN network:
Advantages and disadvantages of SAN network:
True or false :
guided transmission medium contains of twisted pairs, coaxial cables, and fibers optic cable
True
False
True or false :
UTP contains of shielded twisted pair
True
False
True or false :
UTP consider flexible and cheap
True
False
True or false :
STP contains of plastic cover and copper wires
True
False
True or false :
STP need grounding and consider expensive
True
False
Function of insulator in the coaxial cables ?
(a)
Name of connector that used in the coaxial cables?
(a)
What are the Advantages and disadvantages of coaxial cables ? Three for each
Write from what the fiber optics contains and with their function ?
DTR formula:
(a)
DTR means :
(a)
Differentiate between P2P and CS ? (write no more than four differences)
The practice of dividing a network into two or more networks is called
Subnetting
Host
Logical subdivision
Subnets
True or false ;
Subnets is the process of taking bits from the host part of an IP address
in order to divide the larger network into smaller sub-networks
True
False
Means from one point to one destination (one to one)
(a)
Means from one source to all possible destinations (one to all)
(a)
Means from one source to multiple destinations stating an interest
in receiving the traffic (one to many)
(a)
True or false ;
Data transported over a network by four simple methods ?
True
False
True or false:
MAC address exists on the layer 3?
True
False
True or false:
IP address called a physical address?
True
False
True or false:
Network address design to be common identifier across the network
True
False
Is an identifier for a node or a host on a computer network:
(a)
Mention the two types of IP addresses with explanations
MAC address is referred to :
1.
2.
3.
Write the advantages and disadvantages of BUS
Differentiate between point to point and multipoint
True or false:
In star topology every device is connected to central HUB using one single connection?
True
False
All the following considered advantages of star topology except ;
Easy to add or remove devices
Centralized management
Security
Cheap
True or false :
Tree topology can be only passive ?
True
False
What are the advantages of tree topology? (Mention at least 2)
What are the disadvantages of BUS topology?(mention at least 2)
True or false
RING topology consider the most popular :
True
False
True or false;
In Ring topology every system is connected to three other system side by side?
True
False
Write the advantages and disadvantages of cellular topology?
Mention the networking devices (at least 3)
What does NIC mean?
(a)
NIC have MAC address with ;
16 bits
32 bits
48 bits
64 bits
True or false
HUB is allows both wired and wireless networks?
True
False
True or false :
Router consider the most intelligent devices?
True
False
What does ISO means:
(a)
Write the main goal of OSI ?
What are the purpose of model?
True or false:
DLL deals with signal?
True
False
True or false :
Repeaters is a device related to physical layer?
True
False
True or false:
DLL deals with error control?
True
False
The layer that is responsible for carrying packets between sources and destination:
Network layer
Physical layer
DLL layer
Transport layer
True or false :
Transport layer make sure the data segment reach to the destination intact and in order ?
True
False
Explain the data presentation of presentation layer?
What is the difference between data compression and data encryption?
"Just a sender" this sentence represents which of the following;
Simplex
Half duplex
Full duplex
Single duplex
Mention the two types of network addressing ?
(a)
What is the difference between OSI and TCP/IP model?
What does IP address means?
(a)
What is the Function of IP address ?
What is the duty of ICMP ?
Mention 4 types of errors and explain them ?
Is used to find physical address if you have a logical address?
IGMP
ARP
RARP
ICMP
What is the difference between TCP and UDP?
What does DNS means ;
(a)
Mention the four types of DNS servers?
How does DNS work ?
Mention four differences between LAN and VLAN;
FTP. means ?
(a)
What is the function of FTP?
Explain the model of FTP?
All the following are disadvantages of wireless network except
Hackers
Slow DTR
Interference
Expensive
True or false;
ADHOC has easy setup and less security?
True
False
What are the uses of network analyzer ? Mention at least three
What are the features of Network monitoring? Mention at least three
What does VPN mean?
(a)
