Q. In TCP/IP, which layer corresponds to the OSI Network Layer?
-
A.
Application Layer
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B.
Transport Layer
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C.
Internet Layer
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D.
Link Layer
Solution
In the TCP/IP model, the Internet Layer corresponds to the OSI Network Layer, handling routing and addressing.
Correct Answer:
C
— Internet Layer
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Q. What is the main purpose of a router in a WAN?
-
A.
To connect devices within a local network
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B.
To filter traffic based on MAC addresses
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C.
To route data packets between different networks
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D.
To provide wireless connectivity
Solution
Routers are used in WANs to route data packets between different networks, making them essential for inter-network communication.
Correct Answer:
C
— To route data packets between different networks
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Q. What is the maximum distance for a typical WAN connection using fiber optics?
-
A.
Up to 1 km
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B.
Up to 10 km
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C.
Up to 100 km
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D.
Over 100 km
Solution
Fiber optics can support WAN connections over distances greater than 100 km, making them suitable for long-range communication.
Correct Answer:
D
— Over 100 km
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Q. What is the maximum length of a standard Ethernet cable used in WAN connections?
-
A.
100 meters
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B.
200 meters
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C.
300 meters
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D.
400 meters
Solution
The maximum length of a standard Ethernet cable (Cat 5e or Cat 6) is 100 meters for effective WAN connections.
Correct Answer:
A
— 100 meters
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Q. What is the primary advantage of using fiber optic cables in WANs?
-
A.
Lower cost
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B.
Higher bandwidth and longer distance
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C.
Easier installation
-
D.
Less susceptibility to interference
Solution
Fiber optic cables provide higher bandwidth and can transmit data over longer distances compared to other media, making them ideal for WANs.
Correct Answer:
B
— Higher bandwidth and longer distance
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Q. What is the primary function of a router in a WAN?
-
A.
To connect devices within a local network
-
B.
To filter traffic based on MAC addresses
-
C.
To route packets between different networks
-
D.
To provide wireless connectivity
Solution
A router's primary function in a WAN is to route packets between different networks, enabling communication across the WAN.
Correct Answer:
C
— To route packets between different networks
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Q. What is the primary function of a switch in a WAN?
-
A.
To connect multiple networks
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B.
To filter and forward data packets within a network
-
C.
To provide internet access
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D.
To manage network security
Solution
In a WAN, a switch primarily connects multiple networks and manages data traffic between them.
Correct Answer:
B
— To filter and forward data packets within a network
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Q. What is the primary function of error control in WANs?
-
A.
To increase transmission speed
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B.
To ensure data integrity during transmission
-
C.
To manage network congestion
-
D.
To provide encryption
Solution
Error control in WANs is primarily focused on ensuring data integrity during transmission by detecting and correcting errors.
Correct Answer:
B
— To ensure data integrity during transmission
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Q. What is the primary role of a switch in a WAN?
-
A.
To connect multiple networks
-
B.
To filter and forward data packets within a network
-
C.
To provide internet access
-
D.
To manage IP addresses
Solution
In a WAN, switches connect multiple networks and facilitate communication between them, although they primarily operate at the Data Link Layer.
Correct Answer:
B
— To filter and forward data packets within a network
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Q. What is the purpose of error control in WAN communication?
-
A.
To increase transmission speed
-
B.
To ensure data integrity during transmission
-
C.
To reduce the number of devices in the network
-
D.
To manage IP addressing
Solution
Error control in WAN communication is essential for ensuring data integrity during transmission, detecting and correcting errors.
Correct Answer:
B
— To ensure data integrity during transmission
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Q. What is the purpose of error control in WANs?
-
A.
To increase data transmission speed
-
B.
To ensure data integrity during transmission
-
C.
To manage network congestion
-
D.
To provide encryption for data
Solution
Error control in WANs is used to ensure data integrity during transmission by detecting and correcting errors.
Correct Answer:
B
— To ensure data integrity during transmission
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Q. What is the role of a switch in a WAN environment?
-
A.
To connect multiple networks
-
B.
To filter and forward data packets within a network
-
C.
To provide internet access
-
D.
To manage IP addresses
Solution
In a WAN environment, switches connect multiple networks and facilitate communication between them.
Correct Answer:
B
— To filter and forward data packets within a network
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Q. Which addressing scheme is commonly used in WANs for routing?
-
A.
MAC Addressing
-
B.
IPv4 Addressing
-
C.
IPv6 Addressing
-
D.
Both IPv4 and IPv6 Addressing
Solution
Both IPv4 and IPv6 addressing schemes are commonly used in WANs for routing purposes, allowing for a large number of devices.
Correct Answer:
D
— Both IPv4 and IPv6 Addressing
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Q. Which IP addressing method is commonly used in WANs?
-
A.
Private IP addressing
-
B.
Static IP addressing
-
C.
Dynamic IP addressing
-
D.
Both static and dynamic IP addressing
Solution
Both static and dynamic IP addressing are commonly used in WANs to accommodate various network configurations and requirements.
Correct Answer:
D
— Both static and dynamic IP addressing
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Q. Which of the following is a characteristic of WAN transmission media?
-
A.
High bandwidth and low latency
-
B.
Limited distance and high cost
-
C.
Long distance and variable bandwidth
-
D.
Only wired connections
Solution
WAN transmission media are characterized by long distances and variable bandwidth, accommodating large geographical areas.
Correct Answer:
C
— Long distance and variable bandwidth
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Q. Which of the following is NOT a type of WAN technology?
-
A.
MPLS
-
B.
Frame Relay
-
C.
Ethernet
-
D.
Token Ring
Solution
Token Ring is a LAN technology, while MPLS, Frame Relay, and Ethernet can be used in WAN environments.
Correct Answer:
D
— Token Ring
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Q. Which of the following protocols is used for remote access in WANs?
-
A.
Telnet
-
B.
SMTP
-
C.
DNS
-
D.
DHCP
Solution
Telnet is a protocol used for remote access to devices over a WAN, allowing users to manage devices from a distance.
Correct Answer:
A
— Telnet
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Q. Which protocol is primarily used for routing in Wide Area Networks?
-
A.
HTTP
-
B.
FTP
-
C.
BGP
-
D.
SMTP
Solution
BGP (Border Gateway Protocol) is the primary protocol used for routing between different autonomous systems in Wide Area Networks.
Correct Answer:
C
— BGP
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