Practice Exam - 181 to End

Front

Passive security attacks or breaches include packets sniffer, wiretapping and

Back

Spoofing

Answer explanation

Spoofing is a passive security attack that involves impersonating another device or user to gain unauthorized access to information. Unlike denial of service or ping of death, it fits the category of passive attacks like packet sniffing and wiretapping.

Front

In_______, bits are borrowed from the host portion in order to create more networks there you

Back

Subnetting

Answer explanation

Subnetting is the process of dividing a network into smaller, manageable sub-networks by borrowing bits from the host portion of an IP address. This allows for the creation of more networks within the same address space.

Front

The ______ is a variation of digital subscribed line (DSL) technology that only works over a short distance.

Back

Asymmetric DSL (ADSL)

Answer explanation

Asymmetric DSL (ADSL) is designed for short distances, providing higher download speeds than upload speeds, making it suitable for residential use. Other options like VDSL and SDSL have different characteristics and distance limitations.

Front

What is the difference between logical network design and physical network design?

Back

Physical topology refers to the placement of various components, including device location and cable installation. Logical topology shows how data flows within a network, regardless of the physical design.

Answer explanation

The correct choice highlights that physical topology refers to the placement of components and cable installation, while logical topology describes how data flows within the network, independent of the physical layout.

Front

The purpose of a_______ is the seamless transmission of data between network segments.

Back

Bridge

Answer explanation

A bridge connects and facilitates communication between different network segments, allowing for seamless data transmission. Unlike switches and routers, which operate at different layers, bridges specifically handle data link layer tasks.

Front

A Trojan horse is

Back

An application run to look like something else, and when downloaded and opened, it attacks the end user's computer from within.

Answer explanation

A Trojan horse disguises itself as a legitimate application. When downloaded and opened, it can compromise the user's computer, making the correct choice "An application run to look like something else, and when downloaded and opened, it attacks the end users computer from within."

Front

A Denial of Service

Back

An application run to deny service to a website so that legitimate users cannot access the site, forcing the site to go down.

Answer explanation

A Denial of Service (DoS) attack aims to make a website unavailable to legitimate users by overwhelming it with traffic, thus forcing it to go down. This matches the correct answer choice.

Front

A Computer Worm is

Back

Malicious software that executes arbitrary code and installs copies of itself in the memory of the infected computer, which then infects on the hosts.

Answer explanation

A Computer Worm is a type of malicious software that replicates itself by executing arbitrary code and infecting other hosts, making the first answer choice correct.

Front

Host IP addresses can be assigned

Back

Statically or dynamically

Answer explanation

Host IP addresses can be assigned either statically, where they are manually set, or dynamically, where they are assigned by a DHCP server. This makes 'statically or dynamically' the correct choice.

Front

A network firewall is a

Back

System or group of systems that permit or denies an access control policy for data in and out of two networks.

Answer explanation

A network firewall is a system or group of systems that permit or deny access based on a control policy for data flowing in and out of networks, not for scanning viruses or physical protection.