Computer Networks

It is used to provide port scan for the windows.

This tool is one of the best unix and windows based port scanners.

It is a free Windows-only closed-source TCP/UDP port scanner by Foundstone.

It is a fast Windows IP scanner and port scanner.

Both (1) and (4)

It provides the accessibility of the overlapping fragments within time.

It determines the bugs and inconsistencies by implementing the target system.

These fragments are difficult to send on some operating systems.

Both (1) and (2)

All of the above

It requires continuous availability of a central server.

The clocks of the involved hosts must be synchronised within configured limits.

Each network should have own keys.

All of the above

Both (1) and (2)

It is used to control transmission.

It is a synchronous layer 2 wan protocol that uses polling to transmit data.

It is used for a device running software that allows connection of two different environments.

This protocol is used to restrict access to one network from another.

All of the above

The analysis of the traffic for a particular device can be done remotely over a network.

The device traffic can be analysed over SSL in the network.

One of the most basic techniques to capture traffic over the device is by using tcpdump.

All of the above

Both (1) and (3)

HTTP protocol is designed to interpret traffic at the HTTP level.

HTTP protocol supports any kind of internet traffic.

It is very cheap.

It is not encrypted.

Both (2) and (3)

It is necessary to root the device and update its memory storage.

The manually configuration of proxy setting is also possible for non-rooted devices.

Orbot can transparently proxy traffic on an app-by-app basis through Tor.

All of the above

Both (1) and (2)

It is slower than HTTP.

SOCKS protocol supports any kind of internet traffic.

The latest version of this protocol is SOCKS5.

All of the above

Both (1) and (2)

It is used to modify the HTTP requests on its proxy server.

It can run on Windows and OS X.

To run this proxy, the system's firewall access is mandatory.

All of the above

Both (1) and (3)

To find the right IP address on the desktop.

To change the proxy settings on the phone.

To make sure that the proxy allows external connections.

To make sure that both the mobile device and the proxy machine are on the same network.

None of the above

It can handle the data traffic for web apps as well as web services.

It allows us to see inside requests coming and going from the browser.

It handles and troubleshoots the Ajax requests.

All of the above

Both (1) and (2)

A web proxy server is physically connected to the internal networks of the organisations.

Web proxy server provides the user privacy.

Web proxies also provide caching capabilities.

Web proxies provide virus protection.

None of the above

The proxy works on the client side of the firewall.

The client is part of a network secured by the firewall and the server is external to the secured network.

The server is connected to a network protected by a firewall with the client external to the network.

The client must authenticate itself to the proxy, which can then pass the request to the server.

Only (1), (2) and (4)

HTTPS proxy is a relayer.

HTTPS proxy cannot cache anything.

HTTPS proxy has a channel to the server and the client receives and validates server's certificate.

All of the above

Only (2) and (3)

This proxy server identifies itself as a proxy server but does not make the original IP address available.

This proxy server identifies itself as a proxy server, but makes an incorrect original IP address available through the HTTP headers.

This proxy server identifies itself as a proxy server and also makes the original IP address available through the HTTP headers.

This type of proxy server does not identify itself as a proxy server and does not make available the original IP address.

None of the above