Question $11$ pts

Which two layers of the Open Systems Interconnection $($OSI$)$ Reference Model are closely associated due to the use of Transmission Control Protocol$/$Internet Protocol $($TCP$/$IP$)?$

Group of answer choices

Transport and Presentation $($Layers $4$ and $6)$

Data Link and Network $($Layers $2$ and $3)$

Physical and Data Link $($Layers $1$ and $2)$

Network and Transport $($Layers $3$ and $4)$

Flag question: Question $2$

Question $21$ pts

True or False? Internet Protocol version $4($IPv$4)$ uses a $128-$bit address scheme, whereas Internet Protocol version $6($IPv$6)$ uses a $32-$bit address scheme.

Group of answer choices

True

False

Flag question: Question $3$

Question $31$ pts

True or False? Communication at the Data Link Layer of the Open Systems Interconnection $($OSI$)$ Reference Model enables routers to move packets across the network.

Group of answer choices

True

False

Flag question: Question $4$

Question $41$ pts

True or False? The seamless transfer of an Internet Protocol $($IP$)$ address from one network to another without losing IP sessions is referred to as $"$IP mobility."

Group of answer choices

True

False

Flag question: Question $5$

Question $51$ pts

True or False? In cellular design, microcells are needed for rural areas.

Group of answer choices

True

False

Flag question: Question $6$

Question $61$ pts

True or False? A SIM card is a small smart card that fits into a slot on a mobile phone and contains the subscriber's information.

Group of answer choices

True

False

Flag question: Question $7$

Question $71$ pts

True or False? From the perspective of mobile communications, the term "cellular" refers to the portioning of frequency coverage maps.

Group of answer choices

True

False

Flag question: Question $8$

Question $81$ pts

True or False? In mobile communications cellular design, each cell has its own antenna tower.

Group of answer choices

True

False

Flag question: Question $9$

Question $91$ pts

True or False? A mobile cloud app is installed and runs directly on a mobile device.

Group of answer choices

True

False

Flag question: Question $10$

Question $101$ pts

Which of the following is a network protocol designed to work on existing IEEE$802\mathrm{.}15\mathrm{.}4$ devices and supports a mesh network capable of handling up to $250$ nodes with high levels of authentication and encryption?

Group of answer choices

Zigbee IP

Thread

Bluetooth Low Energy

Z$-$Wave

Flag question: Question $11$

Question $111$ pts

True or False? An organization may build a private LTE network using the lightly licensed spectrum such as Citizen Band Radio Spectrum $($CBRS$).$

Group of answer choices

True

False

Flag question: Question $12$

Question $121$ pts

True or False? Security is a concern for both mobile cloud apps and native mobile apps.

Group of answer choices

True

False

Flag question: Question $13$

Question $131$ pts

True or False? A demilitarized zone $($DMZ$)$ exists between the untrusted Internet and the trusted $($secure$)$ internal network.

Group of answer choices

True

False

Flag question: Question $14$

Question $141$ pts

True or False? Few threats that exist on wired networks also exist on wireless and mobile networks.

Group of answer choices

True

False

Flag question: Question $15$

Question $151$ pts

The principle of information security that is concerned with ensuring that systems and services are not withheld from users by unauthorized means is:

Group of answer choices

integrity.

confidentiality.

nonrepudiation.

availability.

Flag question: Question $16$

Question $161$ pts

True or False? Mobile device management pushes configuration settings to mobile devices, and can provide remote locking, location tracking, and device wiping.

Group of answer choices

True

False

Flag question: Question $17$

Question $171$ pts

Which of the following wireless topologies uses seamless roaming, nomadic roaming, and collocation?

Group of answer choices

Independent basic service set $($IBSS$)$

Mesh basic service set $($MBSS$)$

Basic service set $($BSS$)$

Extended service set $($ESS$)$

Flag question: Question $18$

Question $181$ pts

You are a network administrator. Your company recently approved of employees working from home one day a week and the use of employee$-$owned mobile devices at work. You want to ensure that employees follow wireless security best practices. What is your most important first step?

Group of answer choices

Establish a Bring Your Own Device $($BYOD$)$ policy.

Ask users to lower the radio power on their home wireless access points.

Ensure that WPA$2$ or WPA$3$ encryption is enabled and enforced on all personal wireless devices.

Ask users for the Media Access Control $($MAC$)$ addresses of their home wireless access points.

Flag question: Question $19$

Question $191$ pts

True or False? A wireless access point $($WAP$)$ can serve as a wireless bridge.

Group of answer choices

True

False

Flag question: Question $20$

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