Free Cybersecurity-Architecture-and-Engineering Exam braindumps download (Cybersecurity-Architecture-and-Engineering exam dumps Free)

QUESTION: 41

Which type of communications media uses light waves to transmit data?

Fiber optic
Radio towers
Twisted pair
Coaxial

Answer(s): A

Explanation:

Fiber optic communications use light waves to transmit data.

This method allows for high-speed and long-distance data transmission.

The other options:

Radio towers use radio waves.

Twisted pair uses electrical signals.

Coaxial also uses electrical signals.

Therefore, the correct communication medium that uses light waves is fiber optic.

Reference:

"Fiber-Optic Communication Systems" by Govind P. Agrawal, which details how fiber optics use light for data transmission.

"Communication Networks" by Alberto Leon-Garcia and Indra Widjaja, which explains various communication media.

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QUESTION: 42

Which device does a Local Area Network (LAN) need to communicate over the Internet?

Multiplexer
Repeater
Switch
Router

Answer(s): D

Explanation:

A Local Area Network (LAN) requires a router to communicate over the Internet.

The router serves as a gateway that connects the LAN to the external network (Internet) and directs data traffic between the LAN and the Internet.

The other options:

Multiplexer combines multiple signals into one.

Repeater amplifies signals to extend the range.

Switch connects devices within the LAN but does not facilitate Internet communication.

Therefore, a router is the necessary device for a LAN to communicate over the Internet.

Reference:

"Computer Networking: A Top-Down Approach" by James Kurose and Keith Ross, which explains network devices and their functions.

"CCNA Routing and Switching Study Guide" by Todd Lammle, which covers routers and their roles in networks.

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QUESTION: 43

What are two roles of a DNS?

Choose 2 answers

Creating IP addresses if it cannot find an alias
Storing the IP address
Translating an IP alias to an actual IP address
Sending packets along a pathway that connects it to the Internet

Answer(s): B,C

Explanation:

The Domain Name System (DNS) has several key roles, including:

Storing the IP addresses associated with domain names.

Translating human-readable domain names (aliases) into IP addresses that computers use to identify each other on the network.

The other options:

Creating IP addresses if it cannot find an alias is incorrect; DNS does not create IP addresses.

Sending packets along a pathway that connects it to the Internet is the role of routers and not DNS.

Therefore, storing the IP address and translating an IP alias to an actual IP address are the correct roles of DNS.

Reference:

"DNS and BIND" by Paul Albitz and Cricket Liu, which details the functions and roles of DNS.

"The Practice of System and Network Administration" by Thomas Limoncelli, Christina Hogan, and Strata Chalup, which explains DNS operations.

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QUESTION: 44

Which part of the Uniform Resource Locator (URL) identifies the server on which the web page can be found?

Resource path ID
Domain name
Protocol
IP address

Answer(s): B

Explanation:

The domain name in a Uniform Resource Locator (URL) identifies the server on which the web page can be found.

Example: In the URL "http://www.example.com/index.html":

"http" is the protocol.

"www.example.com" is the domain name.

"/index.html" is the resource path ID.

The other options:

The protocol specifies the communication method.

The resource path ID specifies the specific page or resource on the server.

The IP address is not typically visible in the URL itself but can be resolved via DNS.

Therefore, the domain name is the correct part that identifies the server.

Reference:

"Web Development and Design Foundations with HTML5" by Terry Felke-Morris, which explains URL components.

"Internet and World Wide Web How to Program" by Paul Deitel and Harvey Deitel, which covers URLs and their structure.

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QUESTION: 45

What is the purpose of the feature that allows only one user to modify a document at a time in collaboration software?

Data availability
Data integrity
Data confidentiality
Data accessibility

Answer(s): B

Explanation:

The feature in collaboration software that allows only one user to modify a document at a time ensures data integrity.

Data integrity refers to the accuracy and consistency of data over its lifecycle.

By restricting modification access to one user at a time, the system prevents concurrent changes that could lead to data conflicts or corruption.

The other options:

Data availability ensures data is accessible when needed.

Data confidentiality ensures data is protected from unauthorized access.

Data accessibility refers to the ease of accessing data.

Therefore, ensuring data integrity is the purpose of this feature.

Reference:

"Database Systems: The Complete Book" by Hector Garcia-Molina, Jeffrey D. Ullman, and Jennifer Widom, which discusses data integrity.

"Collaborative Computing: Theory, Practice, and Tools" by Vladimir Dimitrov, which covers features in collaboration software.

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Free Cybersecurity-Architecture-and-Engineering Exam Braindumps WGU Cybersecurity Architecture and Engineering (KFO1/D488) Questions 41–45 (page: 10)

QUESTION: 41

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QUESTION: 42

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QUESTION: 43

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QUESTION: 44

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QUESTION: 45

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Free Cybersecurity-Architecture-and-Engineering Exam Braindumps
WGU Cybersecurity Architecture and Engineering (KFO1/D488) Questions 41–45 (page: 10)