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ccna semester 3 module 2 v-4

by supto | 2:28 AM in | comments (7)

1. Which two statements about Layer 2 Ethernet switches are true? (Choose two.)

Layer 2 switches have multiple collision domains.
Layer 2 switches can send traffic based on the destination MAC address.

2. Which command line interface (CLI) mode allows users to configure switch parameters, such as the hostname and password?

global configuration mode

3. Which two statements are true about EXEC mode passwords? (Choose two.)

The enable secret password command provides better security than the enable password.
The enable password and enable secret password protect access to privileged EXEC mode.

4. Where is the startup configuration stored?

NVRAM

5. Refer to the exhibit. What action does SW1 take on a frame sent from PC_A to PC_C if the MAC address table of SW1 is empty?

SW1 floods the frame on all ports on SW1, except port Fa0/1.

6. Refer to the exhibit. Which hosts will receive a broadcast frame sent from Host A?

hosts A, B, and C

7. What are two ways to make a switch less vulnerable to attacks like MAC address flooding, CDP attacks, and Telnet attacks? (Choose two.)

Change passwords regularly.
Turn off unnecessary services.

8. 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.

9. Refer to the exhibit. The exhibit shows partial output of the show running-config command. The enable password on this switch is "cisco." What can be determined from the output shown?

Any configured line mode passwords will be encrypted in this configuration.

10. A network administrator uses the CLI to enter a command that requires several parameters. The switch responds with "% Incomplete command". The administrator cannot remember the missing parameters. What can the administrator do to get the parameter information?

append a space and then ? to the last parameter

11. Refer to the exhibit. What happens when Host 1 attempts to send data?

Frames from Host 1 cause the interface to shut down.

12. Which two statements are true regarding switch port security? (Choose two.)

Dynamically learned secure MAC addresses are lost when the switch reboots.
If fewer than the maximum number of MAC addresses for a port are configured statically, dynamically learned addresses are added to CAM until the maximum number is reached.

13. Which statement is true about the command banner login "Authorized personnel Only" issued on a switch?

The command will cause the message Authorized personnel Only to display before a user logs in.

14. 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.

15.
If a network administrator enters these commands in global configuration mode on a switch, what will be the result?

Switch1(config-line)# line console 0
Switch1(config-line)# password cisco
Switch1(config-line)# login

to secure the console port with the password "cisco"

16. When a switch receives a frame and the source MAC address is not found in the switching table, what action will be taken by the switch to process the incoming frame?

The switch will map the source MAC address to the port on which it was received.

17. Refer to the exhibit. How many collision domains are depicted in the network?

2

18. Refer to the exhibit. The network administrator’s attempts to connect to Switch1 via Secure Shell are failing. What is most likely the problem?

vty lines that are configured to allow only Telnet

19. What happens when the transport input ssh command is entered on the switch vty lines?

Communication between the switch and remote users is encrypted.

20. Refer to the exhibit. The switch and the hub have default configurations, and the switch has built its CAM table. Which of the hosts will capture a copy of the frame when workstation A sends a unicast packet to workstation C?

ccna semester 1 module 1 v-4

by supto | 2:12 AM in | comments (1)

* indiactes the right answer

1. Which computer component is considered the nerve center of the computer system and is responsible for processing all of the data within the machine?
RAM
* CPU
video card
sound card
operating system

2. What are two advantages of purchasing a preassembled computer? (Choose two..
* usually a lower cost
exact components may be specified
extended waiting period for assembly
* adequate for performing most general applications
suited for customers with special needs

3. A user plans to run multiple applications simultaneously on a computer. Which computer component is essential to accomplish this?
* RAM
NIC
video card
sound card
storage device

4. Which adapter card enables a computer system to exchange information with other systems on a local network?
modem card
controller card
video card
sound card
* network interface card

5. What is the main storage drive used by servers, desktops, and laptops?
tape drive
* hard drive
optical drive (DVD)
floppy disk drive

6. Which component is designed to remove high-voltage spikes and surges from a power line so that they do not damage a computer system?
CPU
* surge suppressor
motherboard
hard drive

7. What are two examples of output peripheral devices? (Choose two.)
* printer
* speakers
flash drive
external DVD
external modem

8. What two functions does a UPS provide that a surge protector does not ? (Choose two.)
protects the computer from voltage surges
* provides backup power from an internal battery
protects the computer from sudden voltage spikes
gives the user time to phone the electrical company
* gives the user time to safely shut down the computer if the power fails
provides backup power through a generator provided by the wall outlet

9. What is a word processor?
It is a physical computer component.
* It is a program designed to perform a specific function.
It is a program that controls the computer resources.
It is a functional part of an operating system.

10. What is the purpose of the ASCII code?
translates bits into bytes
interprets graphics digitally
translates digital computer language into binary language
* represents letters, characters, and numbers with bits

11. Why do servers often contain duplicate or redundant parts?
Servers require more power and thus require more components.
* Servers should be accessible at all times.
Servers can be designed as standalone towers or rack mounted.
Servers are required by networking standards to have duplicate parts.

12. What are two benefits of hooking up a laptop to a docking station? (Choose two.)
Mobility is increased.
* An external monitor can be used.
* Alternate connectivity options may be available.
The keyboard can be changed to a QWERTY-style keyboard.
More wireless security options are available.

13. Applications can be grouped into general use software or industry specific software. What are two examples of industry specific software? (Choose two.)
* CAD
presentation
spreadsheet
word processing
* medical practice management
contacts/scheduling management

14. Which three terms describe different types of computers? (Choose three.)
operating system
network
* laptop
* desktop
Windows
* mainframe

15. How is a server different from a workstation computer?
The server works as a standalone computer.
* The server provides services to clients.
The workstation has fewer applications installed.
The workstation has more users who attach to it.

16. How many values are possible using a single binary digit?
1
* 2
4
8
9
16

17. What measurement is commonly associated with computer processing speed?
bits
pixels
* hertz
bytes


18. What can be used to prevent electrostatic discharge (ESD)?
dry and non humid conditions
carpeted floor
* grounding strap
uncluttered work space

19. If a peripheral device is not functioning, what are three things you should do to solve the problem? (Choose three.)
* Use the testing functionality on the peripheral itself, if available.
* Verify that all cables are connected properly.
Disconnect all cables connected to the computer except those connected to the peripheral.
* Ensure that the peripheral is powered on.
Disconnect the peripheral and verify that the computer is operating normally.
Reload the computer operating system.

20. Which two steps should be performed when installing a peripheral device? (Choose two.)
* Download and install the most current driver.
Connect the peripheral using any cable and any available port on the computer.
* Connect the peripheral using an appropriate cable or wireless connection.
Test the peripheral on another machine before installing it on the one where it will be used.
Check the computer documentation to see if the peripheral vendor is compatible with the PC vendor.

21. In newer operating systems, how are system resources assigned by default when components are installed?
manually assigned by the operating system
manually assigned by the administrator
statically assigned by the component to a preset resource
* dynamically assigned between the component and the operating system

1. Which two features are supported at all three levels of the Cisco three-layer hierarchical model? (Choose two.)
Power over Ethernet
load balancing across redundant trunk links
redundant components
*Quality of Service
*link aggregation

2. Configuring communication between devices on different VLANs requires the use of which layer of the OSI model?
Layer 1
*Layer 3
Layer 4
Layer 5

3. What is the likely impact of moving a conventional company architecture to a completely converged network?
Local analog phone service can be completely outsourced to cost-effective providers.
The Ethernet VLAN structure is less complex.
*A shared infrastructure is created resulting in a single network to manage.
QoS issues are greatly reduced.
There is less bandwidth competition between voice and video streams

4. Which hierarchical design model layer controls the flow of network traffic using policies and delineates broadcast domains by performing routing functions between virtual LANs (VLANs)?
application
access
*distribution
network
core

5. A network technician is asked to examine an existing switched network. Following this examination, the technician makes recommendations for adding new switches where needed and replacing existing equipment that hampers performance. The technician is given a budget and asked to proceed. Which two pieces of information would be helpful in determining necessary port density for new switches? (Choose two.)
forwarding rate
*traffic flow analysis
*expected future growth
number of required core connections
number of hubs that are needed in the access layer to increase performance

6. A network administrator is selecting a switch that will operate at the network core. Which three features should the switch support for optimum network performance and reliability? (Choose three.)
port security
security policies
*10 Gigabit Ethernet
*quality of service (QoS)
*hot-swappable hardware
Power over Ethernet (PoE)

7. Which three features are commonly supported at the distribution layer of the Cisco hierarchical network model? (Choose three.)
*Security policies
Power over Ethernet
switch port security
*quality of service
*Layer 3 functionality
end user access to network


8. Which two characteristics are associated with enterprise level switches? (Choose two.)
lo
w port density
*high forwarding rate
high latency level
*support link aggregation
predefined number of ports

9. Link aggregation should be implemented at which layer of the hierarchical network?
core only
distribution and core
access and distribution
*access, distribution, and core

10. For organizations that are implementing a voice over IP solution, what functionality should be enabled at all three layers of the hierarchical network?
Power over Ethernet
*quality of service
switch port security
inter-VLAN routing

11. Which layer of the hierarchical design model provides a means of connecting devices to the network and controlling which devices are allowed to communicate on the network?
application
*access
distribution
network
core

12. At which hierarchical layer are switches normally not required to process all ports at wire speed?
core layer
distribution layer
*access layer
entry layer

13. Refer to the exhibit. Beginning with HR servers and workstations, a network engineer is designing a new security structure for the network. Which set of policies adheres to the hierarchical network model design principles?
Implement Layer 3 switching on S1 to reduce the packet processing load on D1 and D2. Install all security processing on S1 to reduce network traffic load.
*Configure port security options on S1. Use Layer 3 access control features on D1 and D2 to limit access to the HR servers to just the HR subnet.
Move all HR assets out of the data center and connect them to S1. Use Layer 3 security functions on S1 to deny all traffic into and out of S1.

14. Which layer of the OSI model does an access layer LAN switch use to make a forwarding decision?
Layer 1
*Layer 2
Layer 3
Layer 4

15. Refer to the exhibit. What characteristic of hierarchical network designs is exhibited by having SW3 connected to both SW1 and Sw2?
scalability
security
*redundancy
maintainability

16. Which layer of the hierarchical network design model is referred to as the high-speed backbone of th
e internetwork, where high availability and redundancy are critical?
access layer
*core layer
data-link layer
distribution layer
network layer
physical layer

17. What statement best describes a modular switch?
a slim-line chassis
allows interconnection of switches on redundant backplane
defined physical characteristics
*flexible characteristics

18. A technician is attempting to explain Cisco StackWise technology to a client that is setting up three stackable switches. Which explanation accurately describes StackWise technology?
StackWise technology allows up to eight ports to be bound together to increase available bandwidth.
StackWise technology allows the switch to deliver power to end devices by using existing Ethernet cabling.
StackWise technology allows the switch capabilities and ports to be expanded by the addition of line cards.
*StackWise technology allows up to nine switches to be interconnected via the use of a fully redundant backplane.

19. Which hierarchical design characteristic would be recommended at both the core and distribution layers to protect the network in the case of a route failure?
PoE
*redundancy
aggregation
access lists

20. Which feature supports higher throughput in switched networks by combining multiple switch ports?
convergence
redundant links
*link aggregation
network diameter
Perform all port access and Layer 3 security functions on C1.

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