80 Questions
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 _______
IPv4
RIP, OSPF, and BGP are examples of _______ protocols used in _______
routing, the Internet
_______ and _______ are the two main types of routing algorithms discussed in Chapter 4
link state, distance vector
The process of transferring packets from input buffer to appropriate output buffer is known as _______
switching
In a router, the forwarding tables are computed and pushed to input ports by the _______
routing processor
_______ is a key function of input ports in a router
lookup
_______ is a limitation of switching via a bus in routers
bus contention
What is the purpose of DHCP in the context of the provided text?
Assigning unique IP addresses to devices on a network
In the DHCP process described, what does 'yiaddrr' refer to?
The IP address offered by the DHCP server
Based on the text, which IP address was finally assigned to the device requesting it?
223.1.2.4
How long is the lifetime of the IP address assigned in the DHCP transaction?
3600 seconds
What key benefit does IPv6 provide over IPv4 based on the text?
More efficient data forwarding with fixed-length headers
What is the purpose of aggregating IP addresses into ranges in a forwarding table?
To simplify routing operations by grouping similar addresses together
In the context of forwarding tables, what does it mean when addresses don't divide up nicely?
The router must make more complex routing decisions
What is the purpose of a subnet mask in IP addressing?
To distinguish between network and host portions of an IP address
How does CIDR (Classless Inter-Domain Routing) help with IP address allocation?
It enables efficient allocation of IP addresses by allowing for variable-length subnet masks
What is the role of DHCP (Dynamic Host Configuration Protocol) in network configuration?
It automatically assigns and manages IP addresses, subnet masks, and other configuration parameters
What is the purpose of a subnet mask?
To determine the network portion of an IP address
What is the subnet mask for the CIDR notation 200.23.16.0/23?
255.255.254.0
How many subnets are created when using the subnet mask 255.255.255.0?
2
Which of the following is NOT a key function of the Network Layer?
Providing DHCP services
What is the purpose of CIDR notation in IP addressing?
To specify the subnet mask length
What does DHCP stand for?
Dynamic Host Configuration Protocol
In the DHCP client-server scenario, what is the destination IP address and port number used by the client in the 'DHCP discover' message?
src: 0.0.0.0, 67 dest: 255.255.255.255, 68
What is the subnet mask for the network 223.1.2.0/24?
255.255.255.0
Which IP address range is valid for the network 223.1.1.0/24?
223.1.1.0 - 223.1.1.255
What is the purpose of DHCP in IP addressing?
To dynamically assign IP addresses to hosts
The DHCP client in the provided transaction received an IP address of 223.1.2.4.
True
The lifetime of the IP address assigned in the DHCP transaction is 36000 seconds.
False
The subnet mask for the network 223.1.2.0/24 is 255.255.255.0.
True
The DHCP client used the destination IP address 0.0.0.0 and destination port 68 in the DHCP Discover message.
False
CIDR notation helps with more efficient IP address allocation by aggregating address ranges.
True
CIDR stands for Classless InterDomain Routing.
True
A subnet consists of device interfaces with different subnet parts of the IP address.
False
Subnet masks are always represented in decimal format.
False
DHCP is responsible for static allocation of IP addresses.
False
Subnets help in isolating networks by detaching each interface from its host or router.
True
A forwarding table contains ranges of IP addresses to reduce the number of entries needed.
True
CIDR notation is used to specify both an IP address and its subnet mask.
True
The purpose of a subnet mask is to identify the network portion of an IP address.
True
DHCP is responsible for dynamically assigning IP addresses to devices on a network.
True
When addresses don't divide up nicely in forwarding tables, the packets are usually forwarded to the last specified range.
False
DHCP stands for Dynamic Host Configuration Protocol
True
A subnet mask helps identify the network and host portions of an IP address
True
CIDR notation allows for more flexible allocation of IP addresses than traditional class-based addressing
True
An IP address assigned through DHCP remains valid only while the host is connected to the network
True
In CIDR notation, a smaller number indicates a larger network
False
DHCP stands for Dynamic Host Configuration Protocol
True
A subnet mask helps identify the network and host portions of an IP address
True
DHCP is responsible for static allocation of IP addresses
False
CIDR notation specifies both an IP address and its subnet mask
True
Subnets help in isolating networks by detaching each interface from its host or router
False
In CIDR notation, a smaller number indicates a larger network
True
The DHCP client in the provided transaction received an IP address of 223.1.2.4
False
DHCP is responsible for dynamically assigning IP addresses to devices on a network
True
The purpose of DHCP in IP addressing is to statically assign IP addresses to hosts
False
The subnet mask for the CIDR notation 200.23.16.0/23 is 255.255.254.0
False
Routing is the process of planning a trip from the source to the destination.
True
In network layer architecture, connection setup involves the establishment of a virtual connection between two end hosts.
True
In the context of routing and forwarding, the routing algorithm determines the end-to-end path through the network.
True
Network layer connection service involves connections between two hosts, and transport layer connection service involves connections between two processes.
True
In datagram networks, routers maintain state about end-to-end connections for efficient routing.
False
In network layer routers, forwarding tables are computed and pushed to output ports by the routing processor.
False
Switching via a bus in routers can result in speed limitations due to bus contention.
True
Routing in the Internet includes protocols like RIP, OSPF, and BGP.
True
The goal of complete input port processing at 'line speed' includes achieving efficient queuing when datagrams arrive faster than the forwarding rate.
True
Advanced design in switching fabrics involves fragmenting datagrams into variable length cells for more efficient switching.
False
IP addresses are only associated with routers, not hosts
False
In IP fragmentation, a large datagram is divided into smaller datagrams for easier transmission
True
CIDR notation allows for more flexible allocation of IP addresses compared to class-based addressing
True
RIP, OSPF, and BGP are examples of routing algorithms discussed in Chapter 4 on Internet Protocol
True
IP addresses consist of 16 bits
False
Priority scheduling ensures that datagrams from lower-priority queues are always transmitted before those from higher-priority queues.
False
RIP, OSPF, and BGP are examples of routing protocols used in the Internet.
True
Connection setup in the transport layer involves establishing connections between two hosts.
False
In network layer connection service, connections are established between two routers.
False
Routing is only responsible for planning the trip from the source to the destination but does not actually forward packets.
False
Test your knowledge on datagram forwarding in the network layer. Learn about routing algorithms, address aggregation, local forwarding tables, and IP address ranges.
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