A network administrator has decided to use WPA2 for security in a WLAN.Which statement describes WPA2?

WPA2 specifies the use of a dynamic encryption key.

WPA2 requires use of an open authentication method.

WPA2 uses preconfigured keys to encrypt and decrypt data.

WPA2 specifies the use of a static encryption key that must be changedfrequently to enhance security.

Which two statements characterize wireless network security? (Choose two.)

Using the default IP address on an access point makes hacking easier.

With SSID broadcast disabled, an attacker must know the SSID to connect.

An attacker needs physical access to at least one network device to launch anattack.

Wireless networks offer the same security features as wired networks offer.

Wireless guest mode provides open access to a protected LAN

What is a function of a DNS server?

It determines the IP address that is associated with a specific host domain name.

It maps IP addresses to physical addresses.

It assigns logical address information to host computers.

It translates private IP addresses to public IP addresses.

What is the purpose of using a source port number in a TCP communication?

to keep track of multiple conversations between devices

to assemble the segments that arrived out of order

to inquire for a nonreceived segment

to notify the remote device that the conversation is over

the combination of a source IP address and port number or a destination IPaddress and port number

the combination of the source and destination IP address and source anddestination Ethernet address

the combination of the source and destination sequence and acknowledgmentnumbers

the combination of the source and destination sequence numbers and portnumbers

How does a client computer determine what source port number to assign to a UDP header?

The port number is random within the range of dynamic port numbers.

The port number is based on a well-known port number that is open on thedestination device.

The port number is based on the application that created the data.

The port number is based on a well-known port number that is assigned to theapplication on the sending device.

What is an advantage of UDP over TCP?

UDP communication requires less overhead.

UDP communication is more reliable.

UDP reorders segments that are received out of order.

What purpose does NAT64 serve in IPv6?

It converts IPv6 packets into IPv4 packets.

It converts regular IPv6 addresses into 64-bit addresses that can be used on theInternet.

It converts the 48-bit MAC address into a 64-bit host address that can be used forautomatic host addressing.

It enables companies to use IPv6 unique local addresses in the network

It translates private IPv6 addresses into public IPv6 addresses.

Which statement accurately describes dynamic NAT?

It provides an automated mapping of inside local to inside global IP addresses

It provides a mapping of internal host names to IP addresses

It dynamically provides IP addressing to internal hosts

It always maps a private IP address to a public IP address.

Which type of applications are best suited to use UDP as the transport layer protocol?

applications that require minimal transmission delay

applications that require flow control

applications that require stateful sessions

applications that require data to be reassembled in a specific order

Which three pieces of information are identified by a URL? (Choose three.)

the protocol that is being used

the domain name that is being accessed

An employee is having connectivity issues. Why might a network technician try toping the default gateway from the employee laptop?

to verify connectivity with the device that provides access to remote networks

to determine if the laptop address is included in the DNS server

to verify that an IP address was provided by the DHCP server

to verify that the SVI interface on the switch is configured correctly

What two characteristics describe an FTP connection? (Choose two.)

Files can be downloaded from or uploaded to the server.

The first connection established is for traffic control and the second connection iscreated to transfer a file.

A large file requires more than two connections between the client and theserver to successfully download it

The server establishes the first connection with the client to control traffic thatconsists of server commands and client replies.

The client needs to run a daemon program to establish an FTP connection witha server

Quiz 3 (it exam)

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Computers

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A client device has initiated a secure HTTP request to a web browser. Whichwell-known port address number is associated with the destination address?

443

110

404

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which feature is characteristic of MAC filtering in wireless networks?

It allows only authorized users to detect the network

It restricts computer access to a wireless network.

It is configured on the computer rather than on the router.

It encrypts data that is transmitted on a wireless network.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What wireless router configuration would stop outsiders from using your home network?

encryption

IP address

router location

network name

MULTIPLE SELECT QUESTION

45 sec • 1 pt

What two IEEE 802.11 wireless standards operate only in the 5 GHz range?(Choose two.)

802.11ad

802.11n

802.11g

802.11ac

802.11a

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which wireless RF band do IEEE 802.11b/g devices use?

5 GHz

2.4 GHz

900 MHz

60 GHz

MULTIPLE SELECT QUESTION

45 sec • 1 pt

What are three advantages of wireless over wired LAN technology? (Choose three.)

higher level of security

longer transmission distance

ease of expansion

lower on-going costs

ease of installation

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is CSMA/CA on a network?

an access method that is used by wired Ethernet technology to avoid collisions

an access method that is used by wireless technology to avoid duplicate SSIDs

an access method that is used by any technology that has excessive collisions

an access method that is used by wireless technology to avoid collisions

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Quiz 3 (it exam)

A client device has initiated a secure HTTP request to a web browser. Whichwell-known port address number is associated with the destination address?

Which feature is characteristic of MAC filtering in wireless networks?

What wireless router configuration would stop outsiders from using your home network?

What two IEEE 802.11 wireless standards operate only in the 5 GHz range?(Choose two.)

Which wireless RF band do IEEE 802.11b/g devices use?

What are three advantages of wireless over wired LAN technology? (Choose three.)

What is CSMA/CA on a network?

A network administrator has decided to use WPA2 for security in a WLAN.Which statement describes WPA2?

What is a feature that can be used by an administrator to prevent unauthorized users from connecting to a wireless access point?

Which wireless access point association parameter is used by the wireless clientto distinguish between multiple wireless networks in the same vicinity?

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