Network Layer Data Forwarding Quiz
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Questions and Answers

In Router architecture overview, two key router functions are running _______ algorithms/protocols and forwarding _______

routing, datagrams

_______ Layer 4-10 Chapter 4 focuses on the introduction of _______

Network, outline

In the Network Layer, the two types of switching planes are _______ and _______

control, data

The IP version that uses datagram format is _______

<p>IPv4</p> Signup and view all the answers

RIP, OSPF, and BGP are examples of _______ protocols used in _______

<p>routing, the Internet</p> Signup and view all the answers

_______ and _______ are the two main types of routing algorithms discussed in Chapter 4

<p>link state, distance vector</p> Signup and view all the answers

The process of transferring packets from input buffer to appropriate output buffer is known as _______

<p>switching</p> Signup and view all the answers

In a router, the forwarding tables are computed and pushed to input ports by the _______

<p>routing processor</p> Signup and view all the answers

_______ is a key function of input ports in a router

<p>lookup</p> Signup and view all the answers

_______ is a limitation of switching via a bus in routers

<p>bus contention</p> Signup and view all the answers

What is the purpose of DHCP in the context of the provided text?

<p>Assigning unique IP addresses to devices on a network</p> Signup and view all the answers

In the DHCP process described, what does 'yiaddrr' refer to?

<p>The IP address offered by the DHCP server</p> Signup and view all the answers

Based on the text, which IP address was finally assigned to the device requesting it?

<p>223.1.2.4</p> Signup and view all the answers

How long is the lifetime of the IP address assigned in the DHCP transaction?

<p>3600 seconds</p> Signup and view all the answers

What key benefit does IPv6 provide over IPv4 based on the text?

<p>More efficient data forwarding with fixed-length headers</p> Signup and view all the answers

What is the purpose of aggregating IP addresses into ranges in a forwarding table?

<p>To simplify routing operations by grouping similar addresses together</p> Signup and view all the answers

In the context of forwarding tables, what does it mean when addresses don't divide up nicely?

<p>The router must make more complex routing decisions</p> Signup and view all the answers

What is the purpose of a subnet mask in IP addressing?

<p>To distinguish between network and host portions of an IP address</p> Signup and view all the answers

How does CIDR (Classless Inter-Domain Routing) help with IP address allocation?

<p>It enables efficient allocation of IP addresses by allowing for variable-length subnet masks</p> Signup and view all the answers

What is the role of DHCP (Dynamic Host Configuration Protocol) in network configuration?

<p>It automatically assigns and manages IP addresses, subnet masks, and other configuration parameters</p> Signup and view all the answers

What is the purpose of a subnet mask?

<p>To determine the network portion of an IP address</p> Signup and view all the answers

What is the subnet mask for the CIDR notation 200.23.16.0/23?

<p>255.255.254.0</p> Signup and view all the answers

How many subnets are created when using the subnet mask 255.255.255.0?

<p>2</p> Signup and view all the answers

Which of the following is NOT a key function of the Network Layer?

<p>Providing DHCP services</p> Signup and view all the answers

What is the purpose of CIDR notation in IP addressing?

<p>To specify the subnet mask length</p> Signup and view all the answers

What does DHCP stand for?

<p>Dynamic Host Configuration Protocol</p> Signup and view all the answers

In the DHCP client-server scenario, what is the destination IP address and port number used by the client in the 'DHCP discover' message?

<p>src: 0.0.0.0, 67 dest: 255.255.255.255, 68</p> Signup and view all the answers

What is the subnet mask for the network 223.1.2.0/24?

<p>255.255.255.0</p> Signup and view all the answers

Which IP address range is valid for the network 223.1.1.0/24?

<p>223.1.1.0 - 223.1.1.255</p> Signup and view all the answers

What is the purpose of DHCP in IP addressing?

<p>To dynamically assign IP addresses to hosts</p> Signup and view all the answers

The DHCP client in the provided transaction received an IP address of 223.1.2.4.

<p>True</p> Signup and view all the answers

The lifetime of the IP address assigned in the DHCP transaction is 36000 seconds.

<p>False</p> Signup and view all the answers

The subnet mask for the network 223.1.2.0/24 is 255.255.255.0.

<p>True</p> Signup and view all the answers

The DHCP client used the destination IP address 0.0.0.0 and destination port 68 in the DHCP Discover message.

<p>False</p> Signup and view all the answers

CIDR notation helps with more efficient IP address allocation by aggregating address ranges.

<p>True</p> Signup and view all the answers

CIDR stands for Classless InterDomain Routing.

<p>True</p> Signup and view all the answers

A subnet consists of device interfaces with different subnet parts of the IP address.

<p>False</p> Signup and view all the answers

Subnet masks are always represented in decimal format.

<p>False</p> Signup and view all the answers

DHCP is responsible for static allocation of IP addresses.

<p>False</p> Signup and view all the answers

Subnets help in isolating networks by detaching each interface from its host or router.

<p>True</p> Signup and view all the answers

A forwarding table contains ranges of IP addresses to reduce the number of entries needed.

<p>True</p> Signup and view all the answers

CIDR notation is used to specify both an IP address and its subnet mask.

<p>True</p> Signup and view all the answers

The purpose of a subnet mask is to identify the network portion of an IP address.

<p>True</p> Signup and view all the answers

DHCP is responsible for dynamically assigning IP addresses to devices on a network.

<p>True</p> Signup and view all the answers

When addresses don't divide up nicely in forwarding tables, the packets are usually forwarded to the last specified range.

<p>False</p> Signup and view all the answers

DHCP stands for Dynamic Host Configuration Protocol

<p>True</p> Signup and view all the answers

A subnet mask helps identify the network and host portions of an IP address

<p>True</p> Signup and view all the answers

CIDR notation allows for more flexible allocation of IP addresses than traditional class-based addressing

<p>True</p> Signup and view all the answers

An IP address assigned through DHCP remains valid only while the host is connected to the network

<p>True</p> Signup and view all the answers

In CIDR notation, a smaller number indicates a larger network

<p>False</p> Signup and view all the answers

DHCP stands for Dynamic Host Configuration Protocol

<p>True</p> Signup and view all the answers

A subnet mask helps identify the network and host portions of an IP address

<p>True</p> Signup and view all the answers

DHCP is responsible for static allocation of IP addresses

<p>False</p> Signup and view all the answers

CIDR notation specifies both an IP address and its subnet mask

<p>True</p> Signup and view all the answers

Subnets help in isolating networks by detaching each interface from its host or router

<p>False</p> Signup and view all the answers

In CIDR notation, a smaller number indicates a larger network

<p>True</p> Signup and view all the answers

The DHCP client in the provided transaction received an IP address of 223.1.2.4

<p>False</p> Signup and view all the answers

DHCP is responsible for dynamically assigning IP addresses to devices on a network

<p>True</p> Signup and view all the answers

The purpose of DHCP in IP addressing is to statically assign IP addresses to hosts

<p>False</p> Signup and view all the answers

The subnet mask for the CIDR notation 200.23.16.0/23 is 255.255.254.0

<p>False</p> Signup and view all the answers

Routing is the process of planning a trip from the source to the destination.

<p>True</p> Signup and view all the answers

In network layer architecture, connection setup involves the establishment of a virtual connection between two end hosts.

<p>True</p> Signup and view all the answers

In the context of routing and forwarding, the routing algorithm determines the end-to-end path through the network.

<p>True</p> Signup and view all the answers

Network layer connection service involves connections between two hosts, and transport layer connection service involves connections between two processes.

<p>True</p> Signup and view all the answers

In datagram networks, routers maintain state about end-to-end connections for efficient routing.

<p>False</p> Signup and view all the answers

In network layer routers, forwarding tables are computed and pushed to output ports by the routing processor.

<p>False</p> Signup and view all the answers

Switching via a bus in routers can result in speed limitations due to bus contention.

<p>True</p> Signup and view all the answers

Routing in the Internet includes protocols like RIP, OSPF, and BGP.

<p>True</p> Signup and view all the answers

The goal of complete input port processing at 'line speed' includes achieving efficient queuing when datagrams arrive faster than the forwarding rate.

<p>True</p> Signup and view all the answers

Advanced design in switching fabrics involves fragmenting datagrams into variable length cells for more efficient switching.

<p>False</p> Signup and view all the answers

IP addresses are only associated with routers, not hosts

<p>False</p> Signup and view all the answers

In IP fragmentation, a large datagram is divided into smaller datagrams for easier transmission

<p>True</p> Signup and view all the answers

CIDR notation allows for more flexible allocation of IP addresses compared to class-based addressing

<p>True</p> Signup and view all the answers

RIP, OSPF, and BGP are examples of routing algorithms discussed in Chapter 4 on Internet Protocol

<p>True</p> Signup and view all the answers

IP addresses consist of 16 bits

<p>False</p> Signup and view all the answers

Priority scheduling ensures that datagrams from lower-priority queues are always transmitted before those from higher-priority queues.

<p>False</p> Signup and view all the answers

RIP, OSPF, and BGP are examples of routing protocols used in the Internet.

<p>True</p> Signup and view all the answers

Connection setup in the transport layer involves establishing connections between two hosts.

<p>False</p> Signup and view all the answers

In network layer connection service, connections are established between two routers.

<p>False</p> Signup and view all the answers

Routing is only responsible for planning the trip from the source to the destination but does not actually forward packets.

<p>False</p> Signup and view all the answers

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