WorksheetsITN - Module 8 - Network Layer
Total questions: 15
Worksheet time: 7mins
The Network layer performs four basic operations (Choose two)
Routing
Decides if the packet is reliable or unreliable
Formats to allow frames on the media
Translates the IP address to the MAC address
Provides a unique identifier
Which command can be used on a Windows host to display the routing table? (Choose two)
Route print
Tracert
Netstat -r
Show ip route
ipconfig /route
When a router receives a packet, what information must be examined in order for the packet to be forwarded to a remote destination?
The interface
Source IP address
Destination IP address
Source MAC address
Destination MAC address
Which IPv4 address can a host use to ping the loopback interface to check if the TCP/IP stack is working?
127.255.255.255
224.0.0.1
127.0.0.1
127.0.0.0
::1/128
What was the reason for the creation and implementation of IPv6?
To relieve IPv4 address depletion
Allow NAT support for private addressing
Header supports additional fields for complex packets
Supports Class-based networks
Standardizes the use of NAT
Which parameter does the router use to choose the path to the destination when there are multiple routes available?
The higher AD value
The lower AD value
The higher metric value
The lower gateway IP address
The lower metric value
Which field in the IPv4 header is used to prevent a packet from traversing a network endlessly?
Time to live
Hop limit
DS
Version
Options
How does the network layer use the MTU value?
Network layer depends on the data link layer to set the MTU and adjusts the speed of transmission to accommodate it
The MTU is passed to the network layer by the data link layer
To increase speed of delivery, the network layer ignores the MTU
Network layer depends on the higher layers to determine the MTU
Which field in an IPv4 packet header will typically stay the same during its transmission?
Options
Time to live
Flag
Packet length
Destination IP address
What is a characteristic of static routing? (choose two)
Good for small non-redundant networks
Must be configured manually
Are a major security risk without configuration
Network changes are updated automatically
Always chooses the best route
When transporting data from real-time applications, such as streaming audio and video, which field in the IPv6 header can be used to inform the routers and switches to maintain the same path for the packets in the same conversation?
Next Header
Flow Label
Traffic Class
Differentiated Services
What is a basic characteristic of the IP protocol?
Knows end device is operational
Reliable end to end delivery
Media dependant
Connectionless
You can access devices of your network but cannot access devices on remote networks. What could be the problem?
Incorrect subnet mask
Invalid IP address
Computer has an invalid default gateway address
Cable is not properly connected to the NIC
End device is turned off
You have issued the show ip route command, what source code is C
Directly connected
Static route
Default route
CIGRP
The destination IP address does not change from end to end connectivity, however, what function is used in IPv4 that has allowed IPv4 to continue without having to migrate to IPv6.
ATP
NAP
NAT
BAT
