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web.groovymark@gmail.com
- November 19, 2024
Question 01
Which routing protocol is classified as an exterior gateway protocol and is used to exchange routing information between autonomous systems?
a) OSPF
b) BGP
c) RIP
d) EIGRP
Correct Answer: b) BGP
Explanation: BGP (Border Gateway Protocol) is the exterior gateway protocol used to exchange routing information between different autonomous systems.
Question 02
Which two protocols manage neighbor discovery processes on IPv4 networks?
a) BGP and OSPF
b) IPv4 and IPv6
c) ICMP and ARP
d) TCP and UDP
Correct Answer: c) ICMP and ARP
Explanation: ICMP (Internet Control Message Protocol) and ARP (Address Resolution Protocol) are responsible for neighbor discovery in IPv4 networks.
Question 03
When a router cannot determine a path to a message’s destination, where does it send the message?
a) Default gateway
b) Routing table
c) Gateway of last resort
d) Administrative distance
Correct Answer: c) Gateway of last resort
Explanation: The gateway of last resort is used when no other specific route is found in the routing table.
Question 04
Which field in a TCP segment is used to determine if an arriving data unit matches the data unit sent by the source?
a) Acknowledgment number
b) Source port
c) Checksum
d) DiffServ
Correct Answer: c) Checksum
Explanation: The checksum field ensures the integrity of the data by checking if the received data matches what was sent.
Question 05
Which OSI layer is responsible for directing data from one LAN to another?
a) Data Link layer
b) Transport layer
c) Network layer
d) Physical layer
Correct Answer: c) Network layer
Explanation: The Network layer (Layer 3) is responsible for directing data from one LAN to another using routing protocols.
Question 06
At which OSI layer does IP operate?
a) Network layer
b) Data Link layer
c) Application layer
d) Transport layer
Correct Answer: a) Network layer
Explanation: IP operates at Layer 3, the Network layer, where it handles logical addressing and routing.
Question 07
Which protocol’s header would a Layer 4 device read and process?
a) HTTP
b) ARP
c) TCP
d) IP
Correct Answer: c) TCP
Explanation: A Layer 4 device processes transport layer protocols like TCP and UDP, which are responsible for ensuring reliable data transfer.
Question 08
What is the Internet standard MTU size for Ethernet networks?
a) 9,198 bytes
b) 1,500 bytes
c) 1,522 bytes
d) 65,535 bytes
Correct Answer: b) 1,500 bytes
Explanation: The standard Maximum Transmission Unit (MTU) for Ethernet networks is 1,500 bytes.
Question 09
What kind of route is created when a network administrator manually configures a router to use a specific path between nodes?
a) Static route
b) Default route
c) Best path
d) Trace route
Correct Answer: a) Static route
Explanation: A static route is a manually configured route, which doesn’t change unless the administrator updates it.
Question 10
Which number indicates a routing protocol’s reliability, with lower values being given higher priority?
a) MTU
b) Routing table
c) Administrative distance
d) Latency
Correct Answer: c) Administrative distance
Explanation: Administrative distance is used to rank the trustworthiness of routing protocols, with lower values indicating higher reliability.
Question 11
Which core protocol in the TCP/IP suite belongs to the Data Link layer and is used to discover MAC addresses?
a) ICMP
b) TCP
c) ARP
d) IP
Correct Answer: c) ARP
Explanation: ARP (Address Resolution Protocol) is used to discover the MAC address associated with an IP address on the local network.
Question 12
Which routing protocol uses bandwidth and delay as default metrics for path selection in Enhanced Interior Gateway Routing Protocol (EIGRP)?
a) OSPF
b) RIP
c) BGP
d) EIGRP
Correct Answer: d) EIGRP
Explanation: EIGRP uses a composite metric based on bandwidth and delay to select the best path.
Question 13
If a router receives a packet with a destination address not found in its routing table and is configured to send all such packets to a specific next-hop address, what is this next-hop address called?
a) Administrative distance
b) Default route
c) Static route
d) Gateway of last resort
Correct Answer: b) Default route
Explanation: A default route is used when no other routes are available in the routing table.
Question 14
Which routing protocol ensures that every router in the network has complete knowledge of the network topology?
a) OSPF
b) EIGRP
c) RIP
d) BGP
Correct Answer: a) OSPF
Explanation: OSPF is a link-state protocol where each router maintains a complete map of the network topology.
Question 15
How does RIP prevent routing loops in a small network with a hop limit of 10?
a) By prioritizing bandwidth
b) By implementing split horizon
c) By limiting the number of hops allowed in a path
d) By using neighbor discovery
Correct Answer: c) By limiting the number of hops allowed in a path
Explanation: RIP prevents routing loops by limiting the number of hops a packet can take to 15.
Question 16
What type of device is designed to combine several internet connections and share traffic equally among them?
a) Multilayer switch
b) Load balancer
c) Wired controller
d) Dual modem
Correct Answer: b) Load balancer
Explanation: A load balancer distributes network traffic across multiple connections, optimizing network performance and reliability.
Question 17
Which of the following is NOT a valid application of a virtual IP address?
a) NAT
b) Gateway redundancy protocols
c) Virtualization
d) IPsec
Correct Answer: d) IPsec
Explanation: Virtual IP addresses are commonly used in NAT and gateway redundancy but are not a feature of IPsec.
Question 18
Which OSI layer does TCP operate at?
a) Data Link layer
b) Network layer
c) Transport layer
d) Application layer
Correct Answer: c) Transport layer
Explanation: TCP operates at the Transport layer (Layer 4), providing reliable communication between devices.
Question 19
Which OSI layer is responsible for the mechanical connection to the network?
a) Physical layer
b) Data Link layer
c) Transport layer
d) Session layer
Correct Answer: a) Physical layer
Explanation: The Physical layer (Layer 1) handles the mechanical, electrical, and procedural connections to the network.
Question 20
Which layer of the OSI model is responsible for encryption and data compression?
a) Network layer
b) Data Link layer
c) Presentation layer
d) Application layer
Correct Answer: c) Presentation layer
Explanation: The Presentation layer (Layer 6) handles the formatting, encryption, and compression of data.
