Ccna1 Ver4 Chap 9
Rolfie is watching you ritch
- 1.
In the graphic, Host A has reached 50% completion in sending a 1 KB Ethernet frame to Host D when Host B wishes to transmit its own frame to Host C. What must Host B do?- A.
Host B must wait until it is certain that Host A has completed sending its frame.
- B.
Host B must send a request signal to Host A by transmitting an interframe gap.
- C.
Host B must wait to receive a CSMA transmission from the hub, to signal its turn.
- D.
Host B can transmit immediately since it is connected on its own cable segment.
- 2.Ethernet operates at which layers of the OSI model? (Choose two.)
- A.
Physical
- B.
Data Link
- C.
Application
- D.
Session
- E.
Network
- F.
Transport
- 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
- F.
The maximum interval within which a station must send another frame to avoid being considered unreachable
- 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
- F.
IP address resolution
- 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
- F.
Determines the source of a transmission when multiple devices are transmitting
- 7.What does the IEEE 802.2 standard represent in Ethernet technologies?
- A.
MAC sublayer
- B.
Physical layer
- C.
Logical Link
- D.
Control sublayer
- E.
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 identifies content that the frame data field may contain?
- A.
Preamble and stop frame
- B.
Network layer packet
- C.
Physical addressing
- D.
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. A result of 172.16.225.0 will be obtained.
- C.
Host A will broadcast an ARP request for the MAC of the destination host.
- D.
A result of 172.16.224.0 will be obtained.
- E.
A result of 172.16.225.255 will be obtained.
- 11.Ethernet operates at which layer of the TCP/IP network model?
- A.
Application
- B.
Physical
- C.
Transport
- D.
Internet
- E.
Data link
- F.
Network access
- 12.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.
- 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.
Refer to the exhibit. The switch and workstation are administratively configured for full-duplex operation. Which statement accurately reflects the operation of this link?
- A.
No collisions will occur on this link.
- B.
Only one of the devices can transmit at a time.
- C.
The switch will have priority for transmitting data.
- D.
The devices will default back to half duplex if excessive collisions occur.
- 15.Which statements correctly describe MAC addresses? (Choose three.)dynamically assigned
- A.
Copied into RAM during system startup
- B.
Layer 3 address
- C.
Contains a 3 byte OUI
- D.
6 bytes long
- E.
32 bits long
- 16.
Refer to the exhibit. Host_A is attempting to contact Server_B. Which statements correctly describe the addressing Host_A will generate in the process? (Choose two.)
- A.
A packet with the destination IP of Router_B.
- B.
A frame with the destination MAC address of Switch_A.
- C.
A packet with the destination IP of Router_A.
- D.
A frame with the destination MAC address of Router_A.
- E.
A packet with the destination IP of Server_B.
- F.
A frame with the destination MAC address of Server_B
- 17.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
- 18.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
- 19.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
- F.
1C
- 20.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
- 21.Refer to the exhibit. What command was executed on a host computer to produce the results shown?
- A.
Route PRINT
- B.
Arp –a
- C.
Arp –d
- D.
Netstat
- E.
Telnet
- 22.Do you feel like a pizza right now.... mmmm pizza
- A.
FUCK YOU! now i want pizza... but its too late
- B.
No no.... i stay i clean CHEERS CUNT
- 23.Who bullies you most in life? - give and explination... tell me your problems.... i am your quiz, and i will help you with your lifes problems..... shhhhh its okay to cry, your secrets safe with me... im a quiz
Recent Quizzes
Featured Quizzes
Back to top