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For a printer or laptop to connect to a wireless LAN, it must have a(n) ________.


A) hyperlink
B) UTP cable
C) WNIC
D) DSL

E) A) and D)
F) B) and C)

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C

Which of the following protocols is concerned with the application layer of TCP/IP Protocol architecture?


A) HTTP
B) IEEE 802.3
C) IEEE 802.11
D) IP

E) A) and B)
F) B) and C)

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A computer network is a collection of computers that communicate with one another over transmission lines or wirelessly.

A) True
B) False

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True

A switch is a special-purpose computer that receives and transmits wired traffic on a LAN.

A) True
B) False

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When you visit the Web page of the luxury brand Bang & Olufsen, the address bar in your browser reads "http://www.bang-olufsen.com/", which is the ________ of the Web page.


A) URL
B) IP address
C) protocol
D) e-mail ID

E) B) and C)
F) A) and D)

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Which of the following is true about cable modems?


A) They provide high-speed data transmission using telephone cables.
B) They offer consistent performance, irrespective of the number of users sending and receiving data.
C) They rely on high-capacity optical fiber cables and use their own protocols for data transmission.
D) They provide faster download speeds than DSL modems.

E) A) and C)
F) A) and B)

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The attribute for a hyperlink is ________, whose value indicates which Web page is to be displayed when a user clicks on a link.


A) href
B) IPv4
C) IaaS
D) IPv6

E) A) and B)
F) A) and C)

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Explain the purpose of XML, Flash, Silverlight, and HTML 5.

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XML (eXtensible Markup Language)is a mar...

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Which of the following statements is true about IEEE 802.3?


A) It is the protocol for wireless LAN connections.
B) It is the protocol for Bluetooth.
C) It is the protocol for wired LAN connections.
D) It is the universal standard protocol for WNICs.

E) All of the above
F) A) and D)

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What are packets and routers?

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A packet is a piece of a message that is...

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Which of the following TCP/IP application-layer protocols is used to move files over the Internet and to maintain Web sites?


A) FTP
B) IP
C) HTTPS
D) HTTP

E) None of the above
F) B) and C)

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Which of the following protocols guarantees secure data transmission?


A) HTTP
B) FTP
C) HTTPS
D) SMTP

E) A) and C)
F) A) and D)

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A packet is a piece of a message that is handled by programs that implement IP.

A) True
B) False

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What is a VPN? Explain how VPNs ensure the security of transmissions.

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A virtual private network (VPN)uses the Internet to create the appearance of private point-to-point connections.The remote user, who is the VPN client, connects to the Internet after which the VPN software on the remote user's computer establishes a connection with the VPN server.The VPN client and VPN server then have a point-to-point connection.That connection, called a tunnel, is a virtual, private pathway over a public or shared network from the VPN client to the VPN server. VPN communications are secure, even though they are transmitted over the public Internet.To ensure security, VPN client software encrypts, or codes the original message so that its contents are protected.Then the VPN client appends the Internet address of the VPN server to the message and sends that package over the Internet to the VPN server.When the VPN server receives the message, it strips its address off the front of the message, decrypts the coded message, and sends the plain text message to the original address on the LAN.In this way, secure private messages are delivered over the public Internet.

List the functions of a LAN device.

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The functions of a LAN device include th...

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Which of the following statements is true about the IEEE 802.11 protocol?


A) It is also known as Ethernet.
B) It is used for wired LAN connections.
C) It cannot be processed by access points.
D) It allows speeds of up to 600 Mbps.

E) A) and D)
F) A) and B)

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One of the advantages of cloud-based hosting is the in-depth visibility of security and disaster preparedness.

A) True
B) False

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Computers that reside in different geographic locations are connected using a(n) ________.


A) WAN
B) LAN
C) URL
D) IP address

E) All of the above
F) B) and D)

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Unlike HTTP, FTP does not have a secure version.

A) True
B) False

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Web servers run on a server-tier computer and manage HTTP traffic by sending and receiving Web pages to and from clients.

A) True
B) False

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