1.
Which statements about Integrated Services Digital Network (ISDN are true? Select Three.
Correct Answer
A. A, B, C
Explanation
The correct answer is A, B, C. This means that statements A, B, and C are true about Integrated Services Digital Network (ISDN). Unfortunately, without the actual statements A, B, and C, it is not possible to provide a specific explanation for why they are true.
2.
What is the name for the router that your PC uses to connect to your Internet Service Provider?
Correct Answer
D. Default Gateway
Explanation
The correct answer is "Default Gateway". The default gateway is the router that your PC uses to connect to your Internet Service Provider. It acts as a bridge between your local network and the internet, routing the traffic between the two. It is responsible for forwarding the data packets from your PC to the appropriate destination on the internet and vice versa.
3.
To configure dial-up networks with Windows XP, which applet should you use?
Correct Answer
A. Network and Internet Connections
Explanation
To configure dial-up networks with Windows XP, you should use the Network and Internet Connections applet. This applet allows you to manage and configure various network connections, including dial-up connections. It provides options to set up and modify dial-up settings, such as phone numbers, authentication methods, and connection properties. By accessing the Network and Internet Connections applet, users can easily configure their dial-up networks on Windows XP.
4.
A Virtual Private Network creates a __________ through the Internet?
Correct Answer
A. Tunnel
Explanation
A Virtual Private Network creates a tunnel through the Internet. This tunnel is a secure and encrypted connection that allows users to access a private network over a public network like the Internet. It ensures that data transmitted between the user's device and the private network remains confidential and protected from unauthorized access. The use of a tunnel in a VPN helps to establish a secure and private connection, enabling users to browse the internet or access resources on the private network securely.
5.
To check to see if the Web server you are trying to reach is available or is down, which command line utility should you use?
Correct Answer
A. PING
Explanation
To check if a Web server is available or down, the appropriate command line utility to use is PING. PING sends a request to the server and waits for a response. If a response is received, it confirms that the server is available. If no response is received, it indicates that the server is down or unreachable.
6.
Which of the following Internet connection methods enables you to watch television on your computer if you have a TV tuner card?
Correct Answer
C. Cable
Explanation
Cable internet connection enables you to watch television on your computer if you have a TV tuner card. Cable internet uses the same coaxial cables that deliver cable television signals, allowing you to access both TV channels and internet data through the same connection. With a TV tuner card installed on your computer, you can receive and decode the cable TV signals, thus enabling you to watch TV on your computer screen. DSL and satellite internet connections do not have this capability. ISN is not a recognized internet connection method.
7.
If your modem cannot connect to the Internet, which of the following can you eliminate as a cause of the problem?
Correct Answer
B. All lines on the Internet are busy
Explanation
If the modem cannot connect to the internet, the cause of the problem cannot be that all lines on the internet are busy. This is because if all lines were busy, it would mean that other devices and modems would also be unable to connect to the internet. Therefore, the problem must lie elsewhere, such as with a dead phone line, dialing the wrong number, or a faulty modem.
8.
Which term describes hardware or sofware that protects your computer or network from probing or malicious users?
Correct Answer
B. Firewall
Explanation
A firewall is a term that describes hardware or software that protects your computer or network from probing or malicious users. It acts as a barrier between your internal network and external networks, filtering incoming and outgoing network traffic based on predetermined security rules. This helps to prevent unauthorized access, block malicious activities, and ensure the security of your computer or network.
9.
Liz can recieve her e-mail, but she cannot send e-mail. Which of the following is most likely causing her problem?
Correct Answer
B. SMTP
Explanation
SMTP stands for Simple Mail Transfer Protocol, which is responsible for sending outgoing emails from a client to a mail server. Since Liz can receive her emails but cannot send emails, it suggests that the issue lies with the protocol responsible for sending emails, which is SMTP.
10.
What is the name for the extremely fast networking connections through which Internet transmissions take place?
Correct Answer
C. Backbones
Explanation
Backbones are the extremely fast networking connections through which Internet transmissions take place. They are the main high-speed connections that link various networks and Internet service providers (ISPs) together. Backbones act as the central infrastructure that enables the flow of data across the Internet, providing the necessary speed and capacity for efficient transmission of information. Gateways are network nodes that connect different networks, Tier 1 providers are large ISPs that directly connect to the Internet backbone, and ISPs are companies that provide Internet access to individuals and organizations.
11.
Which technology enables you to make voice calls over your computer network?
Correct Answer
B. Voice over IP
Explanation
Voice over IP (VoIP) is the technology that enables users to make voice calls over their computer network. It allows the transmission of voice data in the form of digital packets over the internet or any IP-based network. With VoIP, users can make calls using their computer, smartphone, or any other device connected to the internet, eliminating the need for traditional telephone lines. This technology converts analog voice signals into digital data and transmits it over the network, providing a cost-effective and efficient way of communication.
12.
A user on Windows XP has asked you to teach her how to use a feature of Microsoft Word. What tool should you use?
Correct Answer
A. Remote Assistance
Explanation
Remote Assistance is the correct tool to use in this situation. Remote Assistance allows you to connect to another user's computer and provide them with assistance by viewing their screen, taking control of their mouse and keyboard, and guiding them through the steps to use a specific feature. This tool is commonly used for providing technical support or training remotely.
13.
John walked up to a computer that couldn't connect to the Internet and immediately opened a command-line window and typed ping 127.0.0.1. Why?
Correct Answer
C. He wanted to test the NIC on the local machine.
Explanation
John typed "ping 127.0.0.1" in the command-line window to test the NIC (Network Interface Card) on the local machine. The IP address 127.0.0.1 is known as the loopback address, which represents the local host. By pinging this address, John can check if the NIC is functioning properly and if the network stack is working correctly on his own machine. This test helps to determine if the issue lies with the local machine or if it is related to the network connectivity.
14.
Where would you go first if you needed to configure a small Linksys router to use a static IP address?
Correct Answer
B. The Router's configuration web page
Explanation
To configure a small Linksys router to use a static IP address, the first place to go would be the router's configuration web page. This web page provides access to the router's settings and allows the user to make changes, including configuring the IP address. The configuration applet in the Control Panel is not specific to the router and may not have the necessary options. Plugging in a Yost cable and starting PuTTY is a method of accessing the router's command line interface, but the web page is typically more user-friendly. The statement "There is no way to give the router a static IP" is incorrect as routers can be configured to use static IP addresses.
15.
A new client lives in a rural area, outside the connectivity radius of the local cable company and definitely more than 20,000 feet away from the nearest switching center for the phone company. Which Internet option offers the client the best performance?
Correct Answer
D. Satellite
Explanation
Satellite internet would be the best option for the client in this scenario. Since they live in a rural area outside the connectivity radius of the local cable company and far away from the nearest switching center for the phone company, cable and DSL options would not be available or feasible. Dial-up internet would also not be a good option as it is slower and less reliable compared to satellite internet. Therefore, satellite internet, which does not rely on physical infrastructure like cables or phone lines, would provide the client with the best performance in this situation.