CompTIA Network+ Certification (N10-003) Part 14

A wire crimper is used to attach RJ-45 and BNC connectors to a cable by using pressure to press teeth into the inner connector of the cable.

A firewall protects hosts on a private network from attackers on a public network, such as the Internet. It is usually deployed between a private network and a link to the Internet, but it can be deployed between departments within an organization.

A firewall protects hosts on a private network from attackers on a public network by means of packet filtering, port filtering or IP address filtering.

A firewall protects hosts on a private network from attackers on a public network by means of packet filtering, port filtering or IP address filtering.

A wire crimper is used to attach RJ-45 and BNC connectors to a cable by using pressure to press teeth into the inner conductors of the cable

A firewall protects hosts on a private network from attackers on a public network, such as the Internet and is usually deployed between a private network and a link to the Internet.

A multimeter is a device that is used to measure voltages and resistances in electronic components. It can also be used to test for continuity in a wire. A continuity test will indicate if there is a break in the wire, but it cannot locate the break.

A proxy server caches web pages for future retrieval, allowing a user's request to be filled quicker and reduces Internet traffic.

A Time Domain Reflectometer (TDR), which is also called a cable tester, is a device that sends out a signal and measures the time it takes for the signal to return. A break in the cable will cause the signal to return prematurely and will indicate the presense of, and the distance to, the break in the cable.

A DMZ is a separate network segment that contains Internet accessible servers such as access web servers, FTP servers and mail-relay servers and is separated from the Internet and the rest of the private network by means of a firewall

A Time Domain Reflectometer (TDR), also called a cable tester, is a device that sends out a signal and measures the time it takes for the signal to return. A break in the cable will cause the signal to return prematurely and will indicate the presence of, and the distance to, a break in the cable.

A tone generator and locator are two tools often used for tracing cables in a wiring closet. Collectively they are often referred to as the "fox and hound"

A caching proxy server allows Internet access to be centralized. Caching proxy servers reduce the demand on the Internet connection because frequently requested web pages are retrieved from the cache rather than from the Internet. A proxy server is used to prevent network workstation IP addresses from being advertised on the Internet. The proxy server performs all packet filtering. In addition, the proxy will replace a workstation IP address with a proxy IP address and may also authenticate users via a password for connecting to the Internet.

A wire map tester is a device that transmits signals through each wire in a copper twisted-pair cable to determine if it is connected to the correct pin at the other end. It can detect transposed wires, breaks and shorts in the cable.

POP3 will be affected because POP3 uses TCP port 110.

DSL modems use PPPoE and connect via the Public Switched Telephone Network (PSTN)

A wire map tester is a device that transmits signals through each wire in a copper twisted-pair cable to determine its location at the other end of the cable. This will allow you to determine if a patch cable is a straight-through or crossover cable

A wire map tester is a device that transmits signals through each wire in a copper twisted-pair cable to determine if it is connected to the correct pin at the other end. It can detect transposed wires, breaks and shorts in the cable.

The firewall is probably blocking inbound POP3 traffic which is used for e-mail retrieval. POP3 uses port 110. Therefore, you should ensure that inbound traffic on port 110 is permitted on the firewall. This question assumes that SMTP on port 25 is more typically used to transmitt e-mail between servers.

DSL modems use PPPoE

A cable modem uses the cable television network and not the Public Switched Telephone Network (PSTN)

A proxy server hides the IP address of all hosts on the internal network by replacing the private IP address of any requesting host with its own public IP address; thus providing Network Address Translation.

A proxy server does not provide data encryption.

Windows 2000 Server does not support inbound SLIP connections. Therefore remote access clients cannot use SLIP to access Windows 2000 Server computers.

Network Address Translation (NAT) is not compatible with IPSec because NAT changes the IP address in the IP header of each packet. IPSec does not allow this and drops the packet.

Windows Remote Access Services (RAS) allows a workstation to access a remote network through dial up access to a Windows server.

A firewall provides packet filtering, port filtering or IP address filtering. It does not provide authentication or anti-virus protection

Point-to-Point Tunneling Protocol (PPTP) tunnels through an existing Point-to-Point Protocol (PPP) connection between the workstation and a remote server.

A proxy server caches web pages for future retrieval, allowing a user's request to be filled quicker and reducing Internet traffic. A proxy server also hides the IP addresses of all hosts on the internal network by replacing the private IP address of any requesting host with its own public IP address, thus providing Network Address Translation.

PPP and IPX can be used to initiate and maintain a remote access connection to a Windows Server