CCNA Lan Chapter 9: Trivia Quiz
This is a CCNA lan chapter 9 review quiz. It is designed for all of you who are preparing to take the exam but are having a hard time when it comes to reviewing all you know about the local area network. If that is, you just press the start button and begin your journey in understanding the chapter a little better.
- 1.After an Ethernet collision, when the backoff algorithm is invoked, which device has priority to transmit data?
- A.
The device involved in the collision with the lowest MAC address
- B.
The device involved in the collision with the lowest IP address
- C.
Any device in the collision domain whose backoff timer expires first
- D.
Those that began transmitting at the same time
- 2.Ethernet operates at which layers of the OSI model? (Choose two.)
- A.
Network layer
- B.
Transport layer
- C.
Physical layer
- D.
Application layer
- E.
Data-link layer
- 3.Which of the following describe interframe spacing? (Choose two.)
- A.
The minimum interval, measured in bit-times, that any station must wait before sending another frame.
- B.
The maximum interval, measured in bit-times, that any station must wait before sending another frame.
- C.
the 96-bit payload padding inserted into a frame to achieve a legal frame size
- D.
The 96-bit frame padding transmitted between frames to achieve proper synchronization
- E.
The time allowed for slow stations to process a frame and prepare for the next frame.
- 4.What three primary functions does data link layer encapsulation provide? (Choose three.)
- A.
Addressing
- B.
Error detection
- C.
Frame delimiting
- D.
Port identification
- E.
Path determination
- 5.When a collision occurs in a network using CSMA/CD, how do hosts with data to transmit respond after the backoff period has expired?
- A.
The hosts return to a listen-before-transmit mode.
- B.
The hosts creating the collision have priority to send data.
- C.
The hosts creating the collision retransmit the last 16 frames.
- D.
The hosts extend their delay period to allow for rapid transmission.
- 6.What are three functions of the upper data link sublayer in the OSI model? (Choose three.)
- A.
Recognizes streams of bits
- B.
Identifies the network layer protocol.
- C.
makes the connection with the upper layers.
- D.
Identifies the source and destination applications
- E.
Insulates network layer protocols from changes in physical equipment.
- 7.What does the IEEE 802.2 standard represent in Ethernet technologies?
- A.
MAC sublayer
- B.
Physical layer
- C.
Logical Link Control sublayer
- D.
Network layer
- 8.Why do hosts on an Ethernet segment that experience a collision use a random delay before attempting to transmit a frame?
- A.
A random delay is used to ensure a collision-free link.
- B.
A random delay value for each device is assigned by the manufacturer.
- C.
A standard delay value could not be agreed upon among networking device vendors.
- D.
A random delay helps prevent the stations from experiencing another collision during the transmission.
- 9.Refer to the exhibit. Which option correctly matches the frame field type with the contents that frame field includes?
- A.
Header field - preamble and stop frame
- B.
Data field - network layer packet
- C.
Data field - physical addressing
- D.
Trailer field - FCS and SoF
- 10.Host A has an IP address of 172.16.225.93 and a mask of 255.255.248.0. Host A needs to communicate with a new host whose IP is 172.16.231.78. Host A performs the ANDing operation on the destination address. What two things will occur? (Choose two.)
- A.
Host A will change the destination IP to the IP of the nearest router and forward the packet.
- B.
Host A will broadcast an ARP request for the MAC of its default gateway.
- C.
A result of 172.16.225.0 will be obtained
- D.
Host A will broadcast an ARP request for the MAC of the destination host.
- E.
A result of 172.16.225.255 will be obtained.
- 11.Which of the following is a drawback of the CSMA/CD access method?
- A.
Collisions can decrease network performance.
- B.
It is more complex than non-deterministic protocols.
- C.
Deterministic media access protocols slow network performance.
- D.
CSMA/CD LAN technologies are only available at slower speeds than other LAN technologies.
- 12.Ethernet operates at which layer of the TCP/IP network model?
- A.
Application
- B.
Physical
- C.
Transport
- D.
Internet
- E.
Network access
- 13.What is the primary purpose of ARP?
- A.
Translate URLs to IP addresses
- B.
Resolve IPv4 addresses to MAC addresses
- C.
Provide dynamic IP configuration to network devices
- D.
Convert internal private addresses to external public addresses
- 14.Which statements correctly describe MAC addresses? (Choose three.)
- A.
Dynamically assigned
- B.
copied into RAM during system startup
- C.
layer 3 address
- D.
Contains a 3 byte OUI
- E.
6 bytes long
- 15.Which two features make switches preferable to hubs in Ethernet-based networks? (Choose two.)
- A.
Reduction in cross-talk
- B.
Minimizing of collisions
- C.
Support for UTP cabling
- D.
Division into broadcast domains
- E.
Increase in the throughput of communications
- 16.What are the two most commonly used media types in Ethernet networks today? (Choose two.)
- A.
Coaxial thicknet
- B.
Copper UTP
- C.
Coaxial thinnet
- D.
Optical fiber
- E.
Shielded twisted pair
- 17.Convert the binary number 10111010 into its hexadecimal equivalent. Select the correct answer from the list below.
- A.
85
- B.
90
- C.
BA
- D.
A1
- E.
B3
- 18.After an Ethernet collision, when the backoff algorithm is invoked, which device has priority to transmit data?
- A.
The device involved in the collision with the lowest MAC address
- B.
He device involved in the collision with the lowest IP address
- C.
Any device in the collision domain whose backoff timer expires first
- D.
Those that began transmitting at the same time
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