CCNA Discovery Modul 3 Answers

1. A manufacturing company is in the process of a network upgrade. Which two procedures describe the selection and design phase components of the upgrade process? (Choose two)

   *Bring the netwotk into service

    Create and test prototypes

   *Monitor the operation and record changes

    Identify and address the weaknesses of the design

    Compare the user experience with the goals in the documentation

2. What is the benefit for a company to use an ISR router?

   *An ISR provides the functionality of a switch, router, and firewall in one device

    ISRs user a PC operating system for routing traffic, thus simplifying configuration and management

    An ISR is immune to security attacks by hackers and so replace all other network security measures

    ISRs make routing decisions at OSI Layer 7, thus providing more intelligence to the network than do other routers.

3. 

    Refer to exhibit. Which type of twisted pair cable is used between each device?

    A=console, B=straight, C=crossover, D=crossover, E=straight

    A=straight, B=straight, C=straight, D=crossover, E=console

    A=crossover, B=straight, C=straight, D=crossover, E=crossover

   *A=console, B=straight, C=straight, D=crossover, E=crossover

    A=console, B=crossover, C=crossover, D=straight, E=straight

4.

    

    Refer to exhibit. To allow IP communication betweet the two networks. What type of device is required?

    hub

   *router

    switch

    access point

5. Which type of cable has a solid copper cire with several protective layers including PVC, braided wire shielding, and a plastic covering?

    STP

    UTP

   *coaxial

    fiber optic

6. Which two benefits can be gained by locating network equipment in a telecommunications closet, rather tahn in a user area? (Choose two)

    Faster communication speeds

   *improved physical security

    more resistant to hacker attempts

   *centralized cable management

    less electrical usage

7. What is the term for the location at the customer premise where the customer network physically connects to the internet through a telecommunications service provider?

    backbone area

   *point of presence

    network distribution facility

    intermediate distribution frame

8. What does the user of redundant network components supply to a network?

    scalability

    manageability

    compatibility

   *reliability

9. It is said that the goal for availability of a communications system is "five-9s". What is meant by this?

    A down time of .00001% is unacceptable

   *A network needs to be available 99.999% of the time

    Five percent of all network expense covers 99% of user requirements

    The most critical time for network availability is from 9.00 to 5.00 p.m. five days a week

    The best time to do maintenance on a network is from 5.00 p.m. ro 9.00 a.m. five days a week

10. What must be added when a network expands beyond the coverage area of the current telecommunications room?

    MDF

    POP

   *IDF

    IXP

11. Which three issues should be noted on the technician's site survey report? (Choose three)

   *Unlabeled cables

    Only two power outlets per wall in each room

   *Poor physical security of network devices

    Horizontal cabling runs under 100 meters

   *lack of UPS for critical devices

    Two users sharing the same computer

12. In what two ways will entering into a managed service agreement with an ISP for a network upgrade affect the costs that are incurred by the customer? (Choose two)

    Customer IT training costs will increase to enable operation of the new equipment

    The cost of hardware repairs and support will become the responsibility of the customer

   *Network upgrade and maintenance costs will become predictable

    Staffing costs will increase beacause the customer will neew to hire additional IT staff to complete the upgrade

   *The company will not need to spend a large amount of money to purchase the equipment upfront

13. What are advantages of having ISP-managed services? (Choose two)

    Do not require leasing costs for the services

   *Predictable billing

    Eliminate the need for data backup

   *increase availability of help desk services

    Do not require a Service Level Agreement

14. A network technician is assigned to perform a site visit to a customer location to determine the requirements for a network upgrade. In addition to the currently installed equipment inventory. What other information about the hists and networking devices should the technician obtain from customer?

    The cost of the currently installed equipment

    All product keys for site license software

   *Any planned growth anticipated the the near future

    The memory requirements for installed application software

15. When designing a network upgrade. which two tasks should be onsite techinician perform? (Choose two)

    Configure the servers and routers prior to delivery

    Upgrade the network operating system and all client operating systems

   *Investigate and document the physical layout of the premises

    Document the final design for approval by the customer

   *Perform a site survey to document the existing network structure

16. Which three items are typically found in an MDF? (choose three)

    User workstations

   *Switches and routers

    Fax machines

   *Network equipment racks

   *The point of presence

    Copier

17. Why is it important to review the results of an-site survey report with the customer befire beginning the network design?

    To inform the customer of how much time the upgrade will take

    To discuss the implementation schedule for the new equipment

   *To verify that the report accuratelt describes the current network and any plans for expansion

    To review the new network and discuss possible equipment upgrades and replacements

18. A client requires a networking device that is capable of expansion to accomodate growing network demands. What characterictic must this device have to meet this requirement?

    Ability to monitor operation and change the settings for a device

   *Modular physical configuration

    Ability to manage the device remotely

    Ports that can be activated and deactivated

19. What three things are included in a logical topology document? (Choose three)

    The location of cables, computers, and other peripherals

   *The path that the data takes through  a network

    The wireless signal coverage area

    The wiring closet and access point locations

   *The device names and Layer 3 addressing information

    *The location of routing, network address translation, and firewall filtering

20. Which device has the abiility to break up broadcast and collision domains?

    repeater

    Hub

   *router

    Switch