Routing Table Management: Understanding Structure, Updates, and Troubleshooting

Question 1

The primary function of a routing table is to:

Accepted Answer

Store network addresses and their corresponding next-hop devices

Answer

Manage network security configurations

Answer

Assign IP addresses to network devices

Answer

Handle network traffic congestion

Question 2

Static routes are used to:

Accepted Answer

Manually configure a specific path for traffic

Answer

Dynamically learn routes through network discovery

Answer

Prevent routing loops by advertising specific routes

Answer

Provide redundancy in case of link failures

Question 3

The difference between a routing table and a routing protocol is that:

Accepted Answer

A routing table stores routes while a routing protocol distributes them

Answer

A routing protocol stores routes while a routing table distributes them

Answer

They are the same thing

Answer

A routing table is used for IPv4 while a routing protocol is used for IPv6

Question 4

Route summarization:

Accepted Answer

Reduces routing table size and speeds up routing

Answer

Increases routing table size and slows down routing

Answer

Has no impact on routing efficiency

Answer

Improves security by hiding internal network details

Question 5

The link-state routing protocol among the following is:

Accepted Answer

OSPF

Answer

RIP

Answer

EIGRP

Answer

BGP

Question 6

A router determines the next hop for a packet in itsrouting table by:

Accepted Answer

Searching for the longest prefix match

Answer

Comparing the destination IP address with the subnet mask of each entry

Answer

Using the default gateway IP address

Answer

Performing a lookup based on the source IP address

Question 7

In a Cisco router, which command is used to display the routing table?

Accepted Answer

show ip route

Answer

show arp

Answer

show interfaces

Answer

ping

Question 8

What is the primary function of a default route in a routing table?

Accepted Answer

To forward packets that have no specific route entry

Answer

To provide a path to a specific destination network

Answer

To handle broadcasts and multicasts

Answer

To improve network performance

Question 9

What is the primary metric used by routing protocols to determine the best path?

Accepted Answer

Cost

Answer

Distance

Answer

Latency

Answer

Bandwidth

Question 10

What is the fundamental distinction between static and dynamic routing?

Accepted Answer

Static routing requires manual configuration while dynamic routing updates automatically

Answer

Dynamic routing is more secure than static routing

Answer

Static routing provides faster routing than dynamic routing

Answer

There is no difference between static and dynamic routing

Question 11

Which type of routing table entry specifies a path through another router to reach the destination network?

Accepted Answer

Indirect

Answer

Direct

Answer

Default

Answer

Static

Question 12

What is the primary purpose of routing protocol advertisements?

Accepted Answer

To share routing information with other routers

Answer

To delete outdated routing information

Answer

To request routing updates

Answer

To configure routing tables

Question 13

Which of the following is NOT a type of routing update?

Accepted Answer

Differential update

Answer

Incremental update

Answer

Full update

Answer

Partial update

Question 14

What is the purpose of the 'administrative distance' field in a routing table?

Accepted Answer

Indicates the preference level of a routing protocol

Answer

Specifies the type of routing protocol used

Answer

Stores the IP address of the next hop router

Answer

Determines the priority of the route

Question 15

Which routing protocol uses the distance-vector algorithm?

Accepted Answer

RIP

Answer

OSPF

Answer

EIGRP

Answer

BGP

Question 16

What is the primary purpose of split horizon?

Accepted Answer

To prevent routing loops

Answer

To increase network bandwidth

Answer

To improve network security

Answer

To reduce routing updates

Question 17

Which of the following would NOT be a troubleshooting step for routing issues?

Accepted Answer

Upgrading the router's firmware

Answer

Verifying routing table configurations

Answer

Using a tool like traceroute to track packet flow

Answer

Checking cable connections for physical integrity

Question 18

How does a large routing table on a router impact network performance?

Accepted Answer

Increased latency

Answer

Reduced bandwidth

Answer

Enhanced security

Answer

Improved reliability

Question 19

What is the function of a default route in a routing table?

Accepted Answer

Serves as a backup path to destinations not explicitly defined in the table

Answer

Determines the primary path for all network traffic

Answer

Indicates the presence of a routing loop

Answer

Stores the IP address of the local router's interface

Question 20

What is the process called when routers share routing information with each other?

Accepted Answer

Route advertisement and propagation

Answer

Route calculation and selection

Answer

Routing table maintenance

Question 21

Which field in a routing table entry designates the subsequent network interface or IP address for a packet to be forwarded to reach its destination?

Accepted Answer

Next Hop

Answer

Metric

Answer

Interface

Answer

Destination

Question 22

What is the primary purpose of a default route in a routing table, and how does it contribute to the efficient delivery of data packets?

Accepted Answer

To provide an alternative path for packets that do not match any other specific route entries, ensuring uninterrupted network communication.

Answer

To prioritize certain types of traffic, guaranteeing their timely and reliable delivery.

Answer

To prevent routing loops, safeguarding against network instability and data loss.

Question 23

Which routing protocol is characterized by its hierarchical design and utilization of areas, enabling efficient management of large and complex networks?

Accepted Answer

OSPF

Answer

RIP

Answer

BGP

Answer

EIGRP

Question 24

What is the primary benefit of route aggregation in routing table management, and how does it impact the overall efficiency and scalability of networks?

Accepted Answer

Reduces the number of routing table entries, making routing table management more manageable and efficient.

Answer

Makes the routing table more complex and difficult to interpret, potentially leading to misconfigurations.

Answer

Increases the size of the routing table, consuming more memory and potentially affecting router performance.

Answer

Slows down the routing update process, resulting in delayed convergence and network instability.

Question 25

Which technique can be employed to restrict a router from advertising specific routes to its neighboring routers, enhancing network security and preventing unwanted traffic propagation?

Accepted Answer

Route filtering

Answer

Route poisoning

Answer

Route tagging

Answer

Route summarization