Networking Basics Course Final Exam Flashcards
Which items are collectively referred to as network media?
wires and radio waves
What are two types of wired high-speed Internet connections? (Choose two.)
DSL & cable
Which technology is used to uniquely identify a WLAN network?
SSID
Which feature is characteristic of MAC filtering in wireless networks?
It restricts computer access to a wireless network.
Which three layers of the OSI model map to the application layer of the TCP/IP model?
application
presentation
session
Which type of network cable is commonly used in backbone networks and telephone companies?
fiber-optic cable
How much data can be encapsulated into a normal sized Ethernet frame before it is sent over the network?
46 to 1500 bytes
What are two actions performed by a Cisco switch?
utilizing the MAC address table to forward frames via the destination MAC address
&
using the source MAC addresses of frames to build and maintain a MAC address table
Which type of address does a switch use to build the MAC address table?
source MAC address
Which information does a switch use to populate the MAC address table?
the source MAC address and the incoming port
When IPv4 is configured for a computer on a network, what does the subnet mask identify?
the part of the IP address that identifies the network
What are the three ranges of IP addresses that are reserved for internal private use? (Choose three.)
10.0.0.0/8, 192.168.0.0/16, & 172.16.0.0/12
A student is helping a friend with a home computer that can no longer access the Internet. Upon investigation, the student discovers that the computer has been assigned the IP address 169.254.100.88. What could cause a computer to get such an IP address?
unreachable DHCP server
Which shortened address is an accurate representation of the IPv6 address 2001:0db8:0000:0000:ab00:0000:0000:0000?
2001:db8:0:0:ab00::
What is the valid most compressed format possible of the IPv6 address 2001:0DB8:0000:AB00:0000:0000:0000:1234?
2001:DB8:0:AB00::1234
Which DHCPv4 message will a client send to accept an IPv4 address that is offered by a DHCP server?
broadcast DHCPREQUEST
Which statement is true about DHCP operation?
When a device that is configured to use DHCP boots, the client broadcasts a DHCPDISCOVER message to identify any available DHCP servers on the network.
How many bits make up an IPv4 address?
32
What is the host number of the IP address?
IPv4 Address very end number. EX 10.10.10.(2)
When a LAN is connected to the internet using a wireless router, how do devices on the LAN communicate on the internet using NAT?
All devices must share the single public IPv4 address assigned to the wireless router in order to communicate to the internet via NAT.
A network administrator investigates a user problem. The user can reach hosts on the same network, but is unable to communicate to remote networks.The network administrator tries to ping the gateway address configured on the host device and is unsuccessful. What is the most likely cause of the problem?
The default gateway address is incorrect.
Workstation A sends an IP packet to workstation B. Which two statements describe the encapsulation of the packet as it passes through the network?
The Layer 2 header is stripped from the frame when it is received by each router.
The source Layer 3 address is changed when it is received at each router.
Which portion of the network layer address does a router use to forward packets?
network portion
Which type of address can be shared through NAT to enable home network devices to send and receive data over the internet?
registered public IP address
