| 16. |
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To confirm connectivity, you would use which of the following
commands?
A. ARP
B. PPTP
C. PING
D. RAS
E. <!-- invisible comment here -->
Answer: C - The packet Internet groper, otherwise known as PING, uses Internet
Control Message Protocol (ICMP) to find and time a response from the target.
References: | Troubleshooting
Microsoft TCP/IP |
Using The PING Command | |
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| 17. |
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You find you can connect to a Web site by using the IP
address; however, when using the friendly name, the machine fails to connect.
This is most likely caused by which of the following?
A. Incorrect DNS entry
B. Defective DHCP entry
C. Mac entry is corrupt
D. The Internet is down
Answer: A - DHCP leases IP addresses, MAC addresses are on a NIC. If you had a
bad NIC, there would be no connectivity at all. This leaves choice a, which
resolves friendly names to IP addresses, as the correct answer. DNS(Domain Name
Server) – Used to map names to IP addresses and vice versa. Domain Name Servers
maintain central lists of domain name/IP addresses and map the domain names in
your Internet requests to other servers on the Internet until the specified web
site is found. References: |
"The server
does not have a DNS entry": what it means and how to fix it |
What is DNS? | |
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| 18. |
|
What is a crossover cable typically used for?
A. Perform NIC loopback tests
B. Extend the maximum cable length
C. Connect two hubs together
D. Transmit test data to devices
E. Connect a computer to a switch
Answer: C - A crossover patch cable can be
used to connect two hubs together, or to connect two computers directly to each
other without the use of a hub. A crossover cable can also be used to
interconnect two computers by "crossing over" (reversing) their respective PIN
contacts. A crossover cable is sometimes known as a null modem. Connecting
two computers using a crossover cable will save you the cost of a hub when you
want to interconnect two devices in the same home or office.
References: |
How to
make a Crossover Cable |
Ethernet crossover cable diagram and functionality|
How to make a crossover cable(2) |
How to Make Your Own Network Cables - Network Cable Color Code Standards | |
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| 19. |
|
What is a difference between a Directory and a Search Engine?
A. Search engines use spiders while directories don't
B. Search Engines are Searchable while Directories aren't
C. Directories do not charge wheareas Search Engines charge an arm and a leg
D. Directories contain only Business websites while Search Engines contain all
types.
Answer: A -
References: |
Directories vs. Search Engines | |
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| 20. |
|
The proper way to create a VPN is to use
A. NetBIOS
B. WINS
C. DNS
D. PPTP
Answer: D - Among the selected choices, only
PPTP, Point-to-Point Tunneling Protocol, is a secure transport protocol. NetBIOS
is for naming machines, WINS is a Microsoft offering for resolving domain names,
and Domain Name Service (DNS) is for resolving IP addresses to friendly names.
VPN - Short for Virtual Private Network, is a
network that is constructed by using public wires to connect nodes. For example,
the Internet may be used as the medium for transporting data. A VPN uses
encryption and other security mechanisms to ensure that only authorized users
can access the network and that the data cannot be intercepted.
References: |
How Virtual Private Networks work | |
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| 21. |
|
Which of the following technologies is not parsed on the
server?
A. CGI
B. ASP
C. ISAPI
D. HTML
Answer: D - HTML is the file format for Web pages that are parsed by the
client's browser. |
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| 22. |
|
Some visitors to your Web site are having trouble hearing the audio files.
What should you check first?
A. RealAudio Player
B. File format
C. Scripts
D. <BGSOUND> tags
Answer: A - Intermittent access problems are usually a sign of browser
compatibility. All of the other answers would be valid if there was a complete
failure.
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| 23. |
|
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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| 24. |
|
The "<DIR>" tag in HTML 4.0 will create what?
A. A dictionary list
B. A divided list
C. A direction table
D. A directory list
Answer: D - The <DIR> tag is used to create
a directory list. This is a rarely used list tag that generally has the same
sort of effect as the <ul> tag. The other answers do not exist in HTML 4.0.
References: |
The dir tag
|
HTML Cheat-Sheet |
Barebone
Guide To HTML |
Overview of all tags | |
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| 25. |
|
What is the primary purpose of an extranet?
A. Extending a network
B. Creating a B2B business model
C. Bridging to LANs
D. Provide extra content on a network
Answer: B - The primary function of an
extranet is to create a B2B business model. Answer c is close; however, it is a
better description for a bridge. An extranet is a private network that uses the
Internet protocols and the public tele-communication system to share a
business’s information, data or operations with external suppliers, vendors or
customers. An extranet can be viewed as the external part of a company’s
Intranet. References: |
B2B
networks: Intelligent extranets |
What is an Extranet |
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| 26. |
|
Which of the following attributes apply to caching DNS servers?
[Choose the three best answers]
A. Manages zone files
B. Handles resolver queries
C. Has no domain-level authority
D. Contains no host names
Answer: B, C, D - The only responsibility of
a caching DNS server is to handle resolver queries. Unlike primary and secondary
DNS servers, it has no domain-level authority, no host name entries, and does
not manage any zone files. The TCP/IP DNS protocol lets you associate numeric IP
addresses with people-friendly names such as
www.thecertificationhub.com by
matching corresponding IP addresses. This name-resolution service lets you
easily locate networked resources within your organization and on the internet.
References: |
DNS Guide - A Crash Course |
Windows 2000 DNS White Paper |
Windows DNS FAQ |
How to Configure Windows XP TCP/IP to Use DNS | |
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| 27. |
|
To use a router to connect to the Internet, you need:
A. A valid domain name from InterNIC
B. Permission from the W3C
C. A valid IP address
D. A certified Cisco technician
Answer: C - To connect to the Internet with a router, you need only a valid IP
address. |
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| 28. |
|
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 |
142863 - Valid IP Addressing for a Private Network | |
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| 29. |
|
What protocol is required to use the Internet?
A. TCP/IP
B. IPX/SPX
C. NetBEUI
D. WINS
Answer: A - The entire Internet uses the
TCP/IP suite for network
communications. TCP/IP contains over 100 protocols, services, and utilities. IPX/SPX
is NetWare's protocol suite. NetBEUI is a small protocol for LANs. WINS is a
naming service that is part of the Microsoft TCP/IP suite.
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| 30. |
|
E-commerce sites offer what two catalog types?
A. Dynamic with graphics
B. Static and dynamic
C. Static and audio
D. Dynamic and streaming
Answer: B - The dynamic catalog allows for interactive consumer information,
whereas the static catalog is fixed and must be updated by
changing the page, not the dynamic inventory database. |
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| 31. |
|
What are the two basic components of a merchant system? [Choose
the two best answers]
A. Merchant server
B. Transaction server
C. Certificate server
D. Online catalog
Answer(s): A, B - All merchant systems must have a merchant server and a
transaction server. The other two answers are optional. |
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| 32. |
|
Copying a graphic from a Web site other than your own and using
it is considered:
A. Allowed because it was on the Web
B. Not a good idea because it may contain incompatible elements
C. Copyright infringement
D. Allowed if you enlarge it
Answer: C - Copyright law dictates that upon saving to disk or printing of a new
graphic file, it is protected because it is a fixed tangible form, making almost
all material available online copyrighted. |
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| 33. |
|
Of the following technologies, which is considered a
client-side script?
A. JavaScript
B. Java
C. ASP
D. C++
Answer: A - JavaScript is the only client-side script listed. Java and C++ are
complete programming languages. Active Server Pages are parsed on the server
with the results being sent to the client in HTML. Note: Client-Side
Scripts execute on the client side of a client-server system. For example, on
the internet JavaScript scripts are client-side because they are executed by
your browser[the client]. In contrast, CGI scripts are server-side because they
run on the Web server. Java applets can be either server-side or client-side
depending on which computer (the server or the client) executes them. References:
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SCRIPT - Client-side Script | |
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| 34. |
|
A digital certificate would not include which feature listed
below?
A. Encryption
B. Handwritten signature
C. A method for authentication
D. Ensures that it is not possible to refute the sending
Answer: B - The "signature" is a long unique key.
References: |
What is a Digital
Certificate? |
How Digital Certificates Work | |
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| 35. |
|
Constantly pinging a server, making it busy, is known as what
type of attack?
A. Out-of-bounds attack
B. Man-in-the-middle attack
C. A brute force attack
D. A denial-of-service attack
Answer: D - The idea is to create so many requests to the server that all its
resources are consumed, leaving none for its intended purposes. A method of
breaking a cipher (that is, to decrypt a specific encrypted text) by trying
every possible key. The quicker the brute force attack, the weaker the cipher. A
SYN-flood attack is a denial-of-service attack where the attacker send a huge
amount of please-start-a-connection packets and then nothing else. These attacks
are collectively known as Denial of Service (DoS) Attacks -
A DoS attack on a network is designed to bring the network to its knees by
flooding it with tons of traffic. Attacks such as the Ping of Death and Teardrop
attacks, exploit limitations in the TCP/IP protocols. There are software fixes
that system administrators can install to limit the damage caused by the
attacks. References: |
The Attacks on GRC.COM
|
Types of Denial of Service Attacks | |
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| 36. |
|
An unauthorized user is between two Web sites reading clear
text passwords. This is known as what type of attack?
A. Out-of-bounds attack
B. Man-in-the-middle attack
C. A flood attack
D. A Ping-of-Death attack
Answer: B - A man-in-the-middle attack does not present itself as a clear
threat, unlike the other three mentioned. |
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