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WorksheetsCOMPUTER 9 NEHEMIAH FINAL EXAM
Total questions: 52
Worksheet time: 30mins
Which of the following statements is true about an IP address?
It cannot be changed.
It is comprised of numbers and letters.
It consists of six numbers.
It can be used to identify the region and country of the computer connected to the Internet.
Which of the following statements is INCORRECT about a Web name?
It cannot be used twice.
It is connected to an IP address.
It is also known as a domain name.
It can be easily changed by any users
. Which of the following is NOT one of the three elements a Web name consists of?
Host Name
Top-Level Domain
IP Address
Domain Name
Which of the following is an example of a top-level domain?
www
123.5.54.25
.org
Which of the following is an example of a host name?
www
123.5.54.25
.org
What is an IP address?
The way computers find each other.
The same thing as a web address.
A phone number.
Which is an example of an IP address?
www.whitehouse.gov
198.137.240.100
(804) 590-3108
What is a Domain Name?
A type of computer.
Numbers to let computers find each other.
What we usually refer to as a web address.
Which is an example of a domain name?
www.whitehouse.gov
198.137.240.100
(804) 590-3108
A Domain Name "translates" the IP address of a computer into words so people can remember it more easily.
true
false
Top Level Domains (TDLs) are also known as domain-name extensions.
true
false
Which is an example of a TDL or Domain Name Extension?
.com
.net
.edu
All of the above
None of the above
Some domain extensions stand for countries and are two letters.
true
false
What is the main job of a server?
Providing internet access
Performing server role
Managing emails
Running applications
What are the two recommended roles for a domain controller?
File sharing, Print services
Active directory domain services, Domain name services
Web hosting, Database management
Network security, Firewall management
What is the purpose of Domain Name Service (DNS)?
To provide internet access
To manage user accounts
To find other computers in the network
To install software applications
What is the recommended integration with Active Directory in Windows Server 2008 R2?
FTP
DNS
DHCP
VPN
What is the purpose of a forest in Active Directory?
To organize users and devices
To provide a secure connection between domains
To manage network resources
To define object's class and attributes
What does Organizational Units (OUs) organize?
Services and resources
Domain name system
Users and groups
Network configurations
What does Active Directory keep track of?
Internet usage
Network security
User activities
Network machine, users, and resources
What type of services does Active Directory provide?
Internet access and firewall management
Email and printer
Database and web hosting
File sharing and network security
What is the brain of a Window Server Network?
Active Directory
DNS Server
File Server
Print Server
What is the security boundary in Active Directory?
Domain
Tree
Organizational Unit
Forest
What does DNS stand for?
Domain Name System
Dynamic Network System
Digital Network Security
Data Naming Service
What is the main function of DNS?
Resolving IP addresses to names
Providing security for websites
Translating numbers to letters
Creating directories for computers
What do IP addresses consist of?
Symbols
Numbers
Letters
Special characters
What is the purpose of DNS in relation to the internet?
To convert names to numbers
To design websites
To block access to websites
To track user activity
How does DNS help in browsing the internet?
By translating domain names to IP addresses
By encrypting data transfers
By blocking access to certain websites
By creating virtual private networks
Ping is the primary TCP/IP command used to troubleshoot connectivity, reachability, and name resolution. Which OS cannot run the command?
Linux
Windows
MacOS
Android
Which of the following online tools is NOT belong with the group?
WhatisMyIP.com
iplocation.net
command prompt
mxtoolbox.com
Understanding Reverse DNS Lookup
A reverse DNS lookup is a DNS query for the domain name associated with a given IP address. This accomplishes the opposite of the more commonly used forward DNS lookup, in which the DNS system is queried to return an IP address.
Reverse lookups are commonly used by email servers. Email servers check and see if an email message came from a valid server before bringing it onto their network. Many email servers will reject messages from any server that does not support reverse lookups or from a server that is highly unlikely to be legitimate.
Spammers often use IP addresses from hijacked machines, which means there will be no PTR record. Or, they may use dynamically assigned IP addresses that lead to server domains with highly generic names.
Logging software also employs reverse lookups in order to provide users with human-readable domains in their log data, as opposed to a bunch of numeric IP addresses.
How do spammers often avoid reverse lookups?
By using hijacked machines
By using dynamically assigned IP addresses
By using static IP addresses
By using VPNs
Why do email servers commonly use reverse lookups?
To verify the legitimacy of incoming messages
To encrypt the messages
To block all incoming messages
To increase server speed
What is a Reverse DNS lookup?
A DNS query for the IP address associated with a domain name
A DNS query for the domain name associated with an IP address
A type of encryption method
A method for securing network connections
What is an IP address?
The way computers find each other.
The same thing as a web address.
A phone number.
Which is an example of an IP address?
www.whitehouse.gov
198.137.240.100
(804) 590-3108
What is a Domain Name?
A type of computer.
Numbers to let computers find each other.
What we usually refer to as a web address.
Which is an example of a domain name?
www.whitehouse.gov
198.137.240.100
(804) 590-3108
A Domain Name "translates" the IP address of a computer into words so people can remember it more easily.
true
false
Top Level Domains (TDLs) are also known as domain-name extensions.
true
false
Which is an example of a TDL or Domain Name Extension?
.com
.net
.edu
All of the above
None of the above
Some domain extensions stand for countries and are two letters.
true
false
The country code for our country is
.UK
.AM
.US
Which of the following statements is UNTRUE when choosing a domain name?
It should be based on the purpose of the website
It should be original
It should reflect the nature of the organization
It will be associated with the organization for a short period of time.
. Which of the following top-level domains should an non-profit organization choose?
.org
.com
.net
.edu
Which of the following top-level domains should a business choose?
.mil
.gov
.com
.info
Which of the following terms describes a person or organization accountable for the website being registered?
Registrar
Registrant
Register
Registry
Which of the following is a reason to register multiple domain names for your website?
It would take less time to register multiple domain names.
Others would not take a similar domain name.
Users would be directed toward the website even if they misspelled the domain name.
It would cost less to register multiple domain names.
Which of the following statements is true about an IP address?
It cannot be changed.
It is comprised of numbers and letters.
It consists of six numbers.
It can be used to identify the region and country of the computer connected to the Internet.
Which of the following statements is INCORRECT about a Web name?
It cannot be used twice.
It is connected to an IP address.
It is also known as a domain name.
It can be easily changed by any users
. Which of the following is NOT one of the three elements a Web name consists of?
Host Name
Top-Level Domain
IP Address
Domain Name
Which of the following is an example of a top-level domain?
www
123.5.54.25
.org
Which of the following is an example of a host name?
www
123.5.54.25
.org
