DsmbISP Chapter 3 – CCNA Discovery: Working at a
Small-to-Medium Business or ISP (Version 4.1)
1. Which type of cable has a solid copper core with several
protective layers including PVC, braided wire shielding, and a plastic
covering?
STP
UTP
coaxial
fiber optic
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 use a PC operating system for routing traffic, thus
simplifying configuration and management.
An ISR is immune to security attacks by hackers and so
replaces 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. 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. to 9:00 a.m. five days a week.
4. Which device has the ability to break up broadcast and
collision domains?
repeater
hub
router
switch
5. Which two types of cable are used for initial router configuration?
(Choose two.)
serial cable
rollover cable
straight-through cable
crossover cable
patch cable
console cable
6. 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
7. A client requires a networking device that is capable of
expansion to suit growing network demands. What type of device will suit this
requirement?
a networking device with ports that can be activated and
deactivated
a networking device with a modular physical configuration
a networking device with the ability to be turned off
remotely
a networking device with a cost per port that is as high as
possible
8. 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
9. In addition to the inventory sheet, what other
information about the hosts and networking equipment should be documented by
the on-site technician while performing the site survey?
any obsolete office equipment being stored
all product keys for site license software
any planned growth anticipated in the near future
the memory requirements for installed application software
10. A manufacturing company is in the process of a network
upgrade. Which two statements are true about the phases of the upgrade process?
(Choose two.)
Phase 1 is used to determine network requirements.
Phase 2 includes creating an analysis report.
Phase 3 is based on an implementation schedule that allows
extra time for unexpected events.
Phase 4 is where prototypes are created and tested.
Phase 5 includes identifying and addressing any weaknesses
in the design.
11. What does the use of redundant network components
supply to a network?
scalability
manageability
compatibility
reliability
12. Refer to the exhibit. What type of device is used to
connect two networks?
hub
router
switch
access point
13. What are two advantages of having ISP-managed services?
(Choose two.)
does not require leasing costs for service
can guarantee up to 99.999% availability
eliminates the need for data backup
increases availability of help desk services
does not require a Service Level Agreement
14. Which two benefits can be gained by locating network
equipment in a telecommunications closet, rather than in a user area? (Choose
two.)
faster communication speeds
improved physical security
more resistant to hacker attempts
centralized cable management
less electrical usage
15. 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
16. What must be added when a network expands beyond the
coverage area of the current telecommunications room?
MDF
POP
IDF
IXP
17. 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
18. When designing a network upgrade, which two tasks
should the onsite technician 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
19. 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 because the customer will need
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.
20. Refer to the 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
21. Why is it important to review the results of an on-site
survey report with the customer before 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 accurately describes the current
network and any plans for expansion
to layout the new network design and discuss possible
equipment upgrades and replacements
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