ENetwork Chapter 10 - CCNA 1

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1. Refer to the exhibit. A student working in the lab selects a cable that is wired as shown. Which connection types can successfully be made with this cable? (Choose two.)
• connecting a PC to a router’s console port
• connecting two routers together via their fast ethernet ports
• connecting two switches together at gigabit speeds
• connecting a PC to a switch at Gigabit Ethernet speeds
• connecting two devices with the same interface type at Fast Ethernet speeds

2. Which option identifies the primary interface which would be used for initial configuration of a Cisco router?
• AUX interface
• Ethernet interface
• serial interface
• console interface

3. What makes fiber preferable to copper cabling for interconnecting buildings? (Choose three.)
• greater distances per cable run
• lower installation cost
• limited susceptibility to EMI/RFI
• durable connections
• greater bandwidth potential
• easily terminated

4. A network administrator is required to use media in the network that can run up to 100 meters in cable length without using repeaters. The chosen media must be inexpensive and easily installed. The installation will be in a pre-existing building with limited cabling space. Which type of media would best meet these requirements?
• STP
• UTP
• coaxial
• single-mode fiber
• multimode fiber



5. What does the term “attenuation” mean in data communication?
• loss of signal strength as distance increases
• time for a signal to reach its destination
• leakage of signals from one cable pair to another
• strengthening of a signal by a networking device

6. How many host addresses may be assigned on each subnetwork when using the 130.68.0.0 network address with a subnet mask of 255.255.248.0?
• 30
• 256
• 2046
• 2048
• 4094
• 4096

7. Which subnet mask would be assigned to the network address of 192.168.32.0 to provide 254 useable host addresses per subnetwork?
• 255.255.0.0
• 255.255.255.0
• 255.255.254.0
• 255.255.248.0

8. A company is planning to subnet its network for a maximum of 27 hosts. Which subnet mask would provide the needed hosts and leave the fewest unused addresses in each subnet?
• 255.255.255.0
• 255.255.255.192
• 255.255.255.224
• 255.255.255.240
• 255.255.255.248

9. What type of network cable is used between a terminal and a console port?
• cross-over
• straight-through
• rollover
• patch cable

10. Which device is used to create or divide broadcast domains?
• hub
• switch
• bridge
• router
• repeater

11. Refer to the exhibit. What destination IP address will PC1 place in the header for a packet destined for PC2?
• 192.168.1.1
• 192.168.2.1
• 192.168.2.2
• 192.168.3.1
• 192.168.3.54

12. Refer to the exhibit. Based on the IP configuration shown, what would be the result of Host A and Host B attempting to communicate outside the network segment?
• both host A and B would be successful
• host A would be successful, host B would fail
• host B would be successful, host A would fail
• both Host A and B would fail

13. Which three types of connectors are commonly associated with Cisco’s V.35 serial cables? (Choose three.)
• RJ 11
• DB 60
• Winchester 15 pin
• DB 9
• smart serial
• RJ 45

14. Refer to the exhibit. How many subnets are required to support the network that is shown?
• 2
• 3
• 4
• 5

15. What are three common methods for setting a UTP Ethernet port to MDI or MDIX operation? (Choose three.)
• direct configuration of the device
• cable color code association
• cable selection and configuration
• use of cable testers to determine pinouts
• the enabling of the mechanism to electrically swap the transmit and receive pairs
• the automatic detection and negotiating of MDI/MDIX operation of the port

16. Which three statements are true about the role of routers in the network? (Choose three.)
• They propagate broadcasts.
• They enlarge collision domains.
• They segment broadcast domains.
• They interconnect different network technologies.
• Each router interface requires a separate network or subnet.
• They maintain a common frame format between LAN and WAN interfaces.

17. Refer to the exhibit. A network administrator has decided to use packet capture software to evaluate all traffic from the student subnet on the way to the Internet. To ensure that all packets are captured, what network device should be used to connect the monitoring station to the network between R1 and R2?
• router
• hub
• switch
• wireless access point

18. Refer to the exhibit. Assume that all devices are using default settings. How many subnets are required to address the topology that is shown?
• 1
• 3
• 4
• 5
• 7

19. Refer to the exhibit. Which three statements are true about the exhibited topology? (Choose three.)
• Hosts B and C are in the same subnet.
• Five broadcast domains are present.
• Host B is using a crossover cable to connect to the router.
• Four broadcast domains are present.
• Five networks are shown.
• Host B is using a rollover cable to connect to the router.

20. To establish a console connection from a computer to a Cisco router, which cable wiring option would be used?
• crossover cable
• straight through cable
• rollover cable
• V.35 cable

21. Refer to the exhibit. Which three statements identify the type of cabling that would be used in the segments that are shown? (Choose three.)
• Segment 1 uses backbone cabling.
• Segment 1 uses a patch cable.
• Segment 3 uses patch cabling.
• Segment 3 uses vertical cabling.
• Segment 3 uses horizontal cabling.
• Segment 4 uses vertical cabling.

22. Refer to the exhibit. A network technician has been allocated the 192.168.1.0/24 private IP address range for use in the network that shown in the exhibit. Which subnet mask would be used to meet the host requirements for segment A of this internetwork?
• 255.255.255.128
• 255.255.255.192
• 255.255.255.224
• 255.255.255.240
• 255.255.255.248

23. Refer to the exhibit. A student is setting up a home network primarily used for extensive file transfers, streaming video, and gaming. Which network device is best suited to these types of activities in the topology shown?

* wireless access point
* router
* hub
* switch

ENetwork Chapter 9 - CCNA 1

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?

• Host B must wait until it is certain that Host A has completed sending its frame.

2. Ethernet operates at which layers of the OSI model? (Choose two.)

• Physical layer

• Data-link layer

3. Which of the following describe interframe spacing? (Choose two.)

• the minimum interval, measured in bit-times, that any station must wait before sending another frame.

• 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.)

• addressing
• error detection
• frame delimiting


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?

• The hosts return to a listen-before-transmit mode. <—

6. What are three functions of the upper data link sublayer in the OSI model? (Choose three.)

• identifies the network layer protocol.
• makes the connection with the upper layers.
• insulates network layer protocols from changes in physical equipment.

7. What does the IEEE 802.2 standard represent in Ethernet technologies?

• Logical Link Control sublayer

8. Why do hosts on an Ethernet segment that experience a collision use a random delay before attempting to transmit a frame?

* 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?

• header field – preamble and stop frame


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.)

• Host A will broadcast an ARP request for the MAC of the destination host.

• Host A will get a result of 172.16.224.0 from the AND process.

11 Which of the following is a drawback of the CSMA/CD access method?

• Collisions can decrease network performance.

12. Ethernet operates at which layer of the TCP/IP network model?

• network access

13. What is the primary purpose of ARP?

• resolve IPv4 addresses to MAC 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?

• No collisions will occur on this link.


15. 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 frame with the destination MAC address of Router_A.
• A packet with the destination IP of Server_B.


16 Which statements correctly describe MAC addresses? (Choose three.)

• copied into RAM during system startup

* contains a 3 byte OUI

• 6 bytes long

17. Which two features make switches preferable to hubs in Ethernet-based networks? (Choose two.)

• minimizing of collisions

• division into broadcast domains


18. What are the two most commonly used media types in Ethernet networks today? (Choose two.)
• coaxial thicknet

• shielded twisted pair

19. Convert the binary number 10111010 into its hexadecimal equivalent. Select the correct answer from the list below.

• BA


20. After an Ethernet collision, when the backoff algorithm is invoked, which device has priority to transmit data?

• any device in the collision domain whose backoff timer expires first

ENetwork Chapter 8 - CCNA 1

1. Which type of cable run is most often associated with fiber-optic cable?

backbone cable


2. In most business LANs, which connector is used with twisted-pair networking cable?

RJ-45



3. When is a straight-through cable used in a network?

when connecting a host to a switch

4. With the use of unshielded twisted-pair copper wire in a network, what causes crosstalk within the cable pairs?

the magnetic field around the adjacent pairs of wire



5. Which OSI layer is responsible for binary transmission, cable specification, and physical aspects of network communication?

Physical

6. An installed fiber run can be checked for faults, integrity, and the performance of the media by using what device?

OTDR

7. XYZ Company is installing new cable runs on their data network. What two types of cable would most commonly be used for new runs? (Choose two.)

Coax

Cat6 UTP



8. What is a possible effect of improperly applying a connector to a network cable?

Data transmitted through that cable may experience signal loss.

9. What are three measures of data transfer? (Choose three.)

goodput

throughput

bandwidth


10. Refer to the exhibit. Which type of Category 5 cable is used to make an Ethernet connection between Host A and Host B?

crossover cable



11. In LAN installations where potential electrical hazards or electromagnetic interference may be present, what type of media is recommended for backbone cabling?

fiber



12. Which fiber connector supports full duplex Ethernet?
• Options three is right answer (kolmas)


13. Which method of signal transmission uses radio waves to carry signals?

wireless

14. Which characteristics describe fiber optic cable? (Choose two.)

It is not affected by EMI or RFI.

It is the most expensive type of LAN cabling.

15. Which of the following is a characteristic of single-mode fiber-optic cable?

generally uses LEDs as the light source

16. What is considered a benefit of wireless as a media choice?

more host mobility



17. What characteristic of UTP cable helps reduce the effects of interference?

the twisting of the wires in the cable

18. What is a primary role of the Physical layer in transmitting data on the network?

create the signals that represent the bits in each frame on to the media