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Exam N10-002: CompTIA Network+ Study Test
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| 18. |
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Which of the following are required for
basic TCP/IP communication outside of your local network? (Choose all that
apply)
A. IP address
B. Default Gateway
C. DNS Server
D. Subnet Mask
Answer: A,B,D - In order for TCP/IP communications to work, you need an IP
address and a Subnet Mask. In order to communicate outside of your network, you
need a default gateway. All traffic that is not destined for your network will
be sent to the default gateway which is usually a router of some sort. DNS
servers are used to resolve names to IP addresses but are not required to
communicate by TCP/IP. References: |
TCP/IP basics |
TCP/IP -
Transmission Control Protocol / Internet Protocol |
Windows NT: Basic Steps to Troubleshooting TCP/IP
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Basic TCP/IP Communication in LabVIEW - Tutorial - Development Library -
National Instruments |
Get
IT Done: Troubleshoot network problems using basic TCP/IP commands |
TCP/IP |
Free
TCP/IP Tutorials and Resources, freeprogrammingresources.com |
ExpertRating - Online Certification and Skill Testing | |
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| 19. |
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What transport does PPTP use?
A. SLIP
B. PPP
C. TCP/IP
D. LLC
Answer: C - PPTP uses the TCP/IP protocol as the transportation protocol between
the ends of the tunnel. SLIP does not support PPTP. PPP encapsulates PPTP
packets when one end of the tunnel is an asynchronous connection. The LLC is
part of the OSI Data Link layer that controls access to the network medium.
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| 20. |
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Which of the following network classes
is reserved for multicast addresses only?
A. Class A
B. Class B
C. Class C
D. Class D
E. Class E
Answer: D - Class D networks are reserved for multicast addresses. Class A, B,
and C networks contain assignable addresses, and Class E networks are reserved
for future and experimental use as well as for broadcasts. References:
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Internet Protocols (IP) |
164015 - Understanding TCP/IP Addressing and Subnetting Basics |
WRQ
Tutorials - IP Addressing Fundamentals |
Daryl's TCP/IP
Primer | The
TCP/IP LAN - A Hands-on How-to | |
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| 21. |
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Which of the following statements
describes a star topology?
A. Less reliable than a ring topology
B. All network computers get equal network access through the use of CSMA/CD
C. Requires more cabling than a bus topology
D. More difficult to troubleshoot than a ring topology
Answer: C - In a ring topology, a single
cable break halts the entire network, which makes ring networks less reliable
than star networks.
CSMA/CD
does not guarantee equal access to all network users, rather it depends on
detecting collisions and random back-off before retry to regulate traffic (only
token-based networks guarantee equal access). Star topologies are connected
through a central hub, and each computer requires a direct link to the hub,
which uses more cabling than a bus topology where computers are connected in a
series, or to a common cable. In a ring topology, a single cable break halts the
entire network, which makes ring networks more difficult to troubleshoot than
star networks. References: |
What is
topology? - A Word Definition From the Webopedia Computer Dictionary |
Data
Network Cabling-Star Topology |Guide
to network topology - how computers get connected
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| 22. |
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What three network protocols are
offered to you by default during the installation of NT?
A. NWLink
B. DLC
C. TCP/IP
D. Appletalk
E. NetBEUI
Answer(s): A, C, E -
References: |
Windows 2000 Networking: Basic Networking Resources |
Articles: How to install network protocols in Windows 2000 |
Adding Windows XP to an Existing Network |
301041 - HOW TO: Install NetBEUI on Windows XP |
Installing network protocols in Windows XP - ZDNet UK Insight |
First looks
at Windows XP Networking | |
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| 23. |
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What network access method should be
implemented to provide centralized control of network transmissions?
A. CSMA/CA
B. CSMA/CD
C. Demand priority
D. Token passing
Answer: C - Computers using
CSMA/CA
send signals that broadcast their intent to
transmit information, without using centralized control. With
CSMA/CD, computers
monitor the network cable and only send messages when no other computer is
transmitting information. No centralized control is involved. With demand
priority, communications only occur between a sending computer, the hub, and a
receiving computer, where all transmissions are under the hub's control.
Demand-priority access method provides a round-robin arbitration method to
provide LAN access based on message priority level.
Token
passing relies on distributed control, not centralized control, since only the
station that holds the token is permitted to transmit. Token-passing is a media
access technique in which a small set of bits called the token is passed between
network devices. Each device receives the token and passes it on to a neighbor.
On receipt of the token, a device is allowed to transmit data onto the network.
The Token must then be released to allow other devices the opportunity to
transmit. Token-passing therefore forces a form of time-division multiplexing on
the network and is a more orderly access technique than carrier-sense multiple
access/collision detection (CSMA/CD). Token passing can be implemented on bus
local area networks (LANs), but is most commonly implemented on ring topologies.
References: |
What is IEEE 802 standards? - A Word Definition From the Webopedia Computer
Dictionary | |
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| 24. |
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Which of these hardware devices can be used to boost broadband signal
strength on a long cable run?
A. Rrepeaters
B. Amplifiers
C. Multiplexers
D. Ttime domain reflectometers
Answer: B - Repeaters strengthen baseband signals. Amplifiers boost signal
strength on broadband networks. Multiplexers are devices that allow sharing
single medium segments by combining several channels for outgoing transmissions
over a segment and reverse the process for incoming signals. They use neither
signal processing nor regeneration. A time domain reflectometer is a cable
testing tool, not a signal boosting technology.
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| 25. |
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How can you protect your private
network from the Internet? [Choose the two best answers]
A. Firewall
B. Password security
C. MAC port grouping
D. VLAN
Answer(s): A, B - A firewall opens the necessary ports to internal host
computers, and password security will deter a hacker from easily gaining access.
MAC port grouping and VLANs are ways to secure a LAN.
References: |
Howstuffworks "How Firewalls Work" |
Internet
Firewalls: Frequently Asked Questions |
Definition - Firewall | |
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| 26. |
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When should you use DNS instead of WINS
to resolve a computer name into an IP address?
A. When there is no LMHOSTS file
B. When there is no HOSTS file
C. When the name being requested has a period (.) in it
D. When the name being requested has a backslash (\) in it
Answer: C - An
LMHOSTS file is used when a name server is not available to
resolve NetBIOS names. A
HOSTS file is used when a name server is not available
to resolve fully-qualified domain names (FQDNs). DNS names use periods to
separate domain and sub-domain names. NetBIOS names include backslashes, and are
serviced by WINS, not DNS. References: |
150800 - Domain Browsing with TCP/IP and LMHOSTS Files |
Windows 2000 Network and Systems Management Resources |
History: Domain Names |
What is DNS?
- A Word Definition From the Webopedia Computer Dictionary |
Howstuffworks "How Domain Name Servers Work" | |
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| 27. |
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In a peer-to-peer network, which of
the following may act as both a client and server?
A. A peer computer
B. A dedicated server
C. A dedicated workstation
D. A stand-alone computer
E. A repeater
Answer: A - On a peer-to-peer network, each computer can act as both a client
and the server computer. Peer-to-peer networks do not have dedicated servers.
References: |
Peer-to-Peer Network without a hub, How-to Guide |
Windows95
Peer-to-Peer Networking |
Setting Up a Wireless Peer-to-Peer Network |
Windows
Peer-to-Peer Networking |
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| 28. |
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On a Windows 95/98 workstation, which
type of access control to shared resources is controlled from the server?
A. Share-level access control
B. User-level access control
C. Computer-level access control
D. Host-level access control
Answer: B - The Network Properties page has an Access Control tab that allows
you to set up user-level access control. User-level access controls security
from the server. Share-level access control is controlled from the workstation. |
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| 29. |
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Which of the following conditions is
likely to make the 10Base2 network segment where it occurs unusable?
A. A broadcast storm
B. A jabbering transceiver
C. A cable break
D. Disconnecting a NIC from a T connector.
E. Disconnecting a terminator from the end of a cable.
Answer: A, B, C, E - A broadcast storm will swamp the network with traffic,
making it unusable. A jabbering transceiver will swamp the cable segment it's
attached to, making that segment unusable. A cable break will make the segment
unusable and disconnect other segments that rely on that segment for carrying
traffic between them. Disconnecting a NIC from a T connector affects only the
computer to which the NIC connects, not the cable segment. All 10Base2 segments
must be properly terminated; removing a terminator from one end of a segment
renders that segment unusable. |
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| 30. |
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Of the list below, which IP addresses
are private addresses? [Choose the two best answers]
A. 10.0.0.1
B. 15.3.2.1
C. 192.167.54.32
D. 192.168.15.2
Answer: A, D - There are three private (reserved by RFC) Class Addresses.
10.x.x.x is the reservation for Class A. IANA - The Internet Assigned Numbers
Authority, has reserved the following three blocks of the IP address space for
private internets (local networks):
10.0.0.0 - 10.255.255.255
172.16.0.0 - 172.31.255.255
192.168.0.0 - 192.168.255.255
Additionally, IP addresses in the range of 169.254.0.0 - 169.254.255.255 are
reserved for Automatic Private IP Addressing.
References: |
307287 - Description of Automatic Private IP Addressing in Windows Millennium
Edition |
Automatic Private IP Addressing | |
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| 31. |
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Which two of the following protocols
are used at the Network layer to map IP and hardware addresses to one another?
A. DNS
B. ARP
C. DHCP
D. WINS
E. RARP
Answer: B, E - ARP and RARP are used at the Network layer to map IP and hardware
addresses to one another. References: |The OSI Reference Model
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| 32. |
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What is the maximum length of a
10Base2 network in an Ethernet network?
A. 100 meters
B. 185 meters
C. 500 meters
D. 2 kilometers
E. 200 meters
Answer: B - The maximum length of a 10Base2 network segment is 185 meters. 100
meters is the maximum length of a 10BaseT/100BaseT network segment. 500 meters
is the maximum length of a 10Base5 network segment. 2 kilometers is the maximum
length of a 10BaseF/100BaseFL network segment.
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| 33. |
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Which of the following UTP cable types
is rated for 100 Mbps transmissions?
A. CAT 2
B. CAT 3
C. CAT 4
D. CAT 5
Answer: D - Category 2 UTP cable can only transfer up to 4 Mbps. Category 3 UTP
cable can only transfer up to 10 Mbps. Category 4 UTP cable can only transfer up
to 16 Mbps. Category 5 UTP cable can transmit up to the specified 100 Mbps. References:
| Category
5 / 5E & Cat 6 Cabling Tutorial and FAQ's - the best source for information on
Cat 5 / 5e / 6 cable! |
How to Make a
Category 5 /5e Patch Cable |
The Latest on Category Cabling |
Windows 2000 Networking: Basic Networking Resources | |
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| 34. |
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To what does the IP address 0.0.0.45
refer?
A. Node 45 on network 0.0.0
B. The multicast node 45 address
C. Any host on network 45
D. Node 45 on "this" network
Answer: D - An IP address with all network bits set to 0 refers to "this" (or
the local) network. A node ID would represent that node on the local network. |
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| 35. |
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What is the standard protocol for
network management features?
A. SMTP
B. SMS
C. SNMP
D. FTP
E. SNA
Answer: C - Simple Network Management Protocol (SNMP) was developed to enable
simple, but extensible management of multiple network components. Devices
enabled with the management client components monitor various devices and gather
information about the devices. References: |
Simple Network Management Protocol (SNMP) in Windows 2000 | |
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