Day 7 Quiz - Routing & Switching

Objective 2.3/Day 7 -

Which of the following enables administrators to monitor the traffic outbound and inbound to the switch?

• Spanning Tree Algorithm

• Trunking

• HSRP

• Port mirroring

Answer explanation

Port mirroring enables administrators to monitor the traffic outbound and inbound to the switch

Objective 2.3/Day 7 -

Which of the following is PoE+ also known as?

• 802.3aa

• 802.3ac

• 802.3af

• 802.3at

Answer explanation

IEEE 802.3at is more commonly known as PoE+.

Objective 2.3/Day 7 -

Which of the following is the IEEE specification developed to ensure interoperability of VLAN technologies from the various vendors?

• 802.1z

• 802.1s

• 802.1Q

• 802.1X

Answer explanation

802.1Q is the IEEE specification developed to ensure interoperability of VLAN technologies from the various vendors.

Objective 2.3/Day 7 -

In an Ethernet network, what technology is being implemented when a system wants to send data to another system and first checks to see whether the network medium is free?

• QoS

• MDI-X

• Jumbo frames

• CSMA/CD

Answer explanation

On a network that uses CSMA/CD, when a system wants to send data to another system, it first checks to see whether the network medium is free. It must do this because each piece of network medium used in a LAN can carry only one signal at a time. QoS features enable administrators to predict bandwidth use, monitor that use, and control it to ensure that bandwidth is available to the applications that need it. MDI-X expands on MDI and allows ports on newer network interfaces to detect if the connection would require a crossover. Jumbo frames are used to allow for very large Ethernet frames; by sending a lot of data at once, the number of packets is reduced, and the data sent is less processor intensive.

Objective 2.3/Day 7 -

What is the function of ARP?

• It resolves MAC addresses to IP addresses.

• It resolves NetBIOS names to IP addresses.

• It resolves IP addresses to MAC addresses.

• It resolves hostnames to IP addresses.

Answer explanation

ARP resolves IP addresses to MAC addresses.

Objective 2.2/Day 7 -

Which routing protocol would be best for a small company that uses inexpensive routers?

• RIP

• EIGRP

• OSPF

• BGP

Answer explanation

RIP (Routing Information Protocol) is simple to configure and maintain, making it a good choice for small networks with limited technical resources. It’s supported by a wide range of inexpensive routers and requires minimal processing power and memory. RIP's simplicity and ease of implementation are ideal for small companies with basic networking needs.

Objective 2.2/Day 7 -

Which routing protocol is used for internet routing?

• RIP

• EIGRP

• OSPF

• BGP

Answer explanation

BGP (Border Gateway Protocol) is the standard protocol for routing between different autonomous systems on the internet. It is used to manage how packets are routed across the internet by exchanging routing information between ISPs and other large networks. BGP is highly scalable and is designed to handle the vast amount of routing information required for internet routing.

Objective 2.2/Day 7 -

A mid-sized company uses a mixture of Cisco and Cradlepoint routers. They also have a few locations with some very old equipment that run non-TCP/IP protocols. Which routing protocol should they use?

• RIP

• EIGRP

• OSPF

• BGP

Answer explanation

EIGRP (Enhanced Interior Gateway Routing Protocol) is a Cisco proprietary protocol that is highly compatible with Cisco equipment, and it can support multiple network layer protocols, including IPX and AppleTalk, which might be used by the old non-TCP/IP equipment. EIGRP is also known for its fast convergence and scalability, making it a robust choice for a mid-sized company.

Objective 2.2/Day 7 -

Match each routing protocol with its corresponding characteristics:

• RIP

• 1. Link State routing protocol.

  2. Uses Dijkstra's algorithm to calculate the shortest path.

  3. Supports Variable Length Subnet Masking (VLSM) and classless addressing.

  4. Suitable for large-scale networks with complex topologies.

• OSPF

• 1. Advanced Distance Vector routing protocol.

  2. Utilizes bandwidth and delay as metrics for path selection.

  3. Supports rapid convergence and reduced routing overhead.

  4. Cisco proprietary protocol widely used in enterprise networks.

• EIGRP

• 1. Distance Vector routing protocol.

  2. Uses hop count as a metric to determine the best path.

  3. Suitable for small to medium-sized networks.

  4. Limited scalability due to hop count limitations.

• BGP

• 1. Path Vector routing protocol.

  2. Used for inter-domain routing on the Internet.

  3. Provides policies for route selection and filtering.

  4. Supports scalability and policy-based routing decisions.

Answer explanation

Routing Information Protocol (RIP)

Characteristics:

Distance Vector routing protocol.

Uses hop count as a metric to determine the best path.

Suitable for small to medium-sized networks.

Limited scalability due to hop count limitations.

Open Shortest Path First (OSPF)

Characteristics:

Link State routing protocol.

Uses Dijkstra's algorithm to calculate the shortest path.

Supports Variable Length Subnet Masking (VLSM) and classless addressing.

Suitable for large-scale networks with complex topologies.

Enhanced Interior Gateway Routing Protocol (EIGRP)

Characteristics:

Advanced Distance Vector routing protocol.

Utilizes bandwidth and delay as metrics for path selection.

Supports rapid convergence and reduced routing overhead.

Cisco proprietary protocol widely used in enterprise networks.

Border Gateway Protocol (BGP)

Characteristics:

Path Vector routing protocol.

Used for inter-domain routing on the Internet.

Provides policies for route selection and filtering.

Supports scalability and policy-based routing decisions.

Objective 2.2/Day 7 -

RIP has an AD of ​ (a)   .

OSPF has an AD of ​ (b)   .

EIGRP has an AD of ​ (c)   .

BGP​ has an AD of ​ (d)   for external routes and ​ (e)   for internal routes.

• 120
• 110
• 90
• 20
• 200
• 100
• 150
• 80

Answer explanation

RIP (Routing Information Protocol) has an AD of 120.

OSPF (Open Shortest Path First) has an AD of 110.

EIGRP (Enhanced Interior Gateway Routing Protocol) has an AD of 90.

BGP (Border Gateway Protocol) has an AD of 20 for external routes and 200 for internal routes.