Minggu, 21 November 2010

kunci cisco chapter 13 essentials (4.0)

Refer to the exhibit. Which type of connection is being established between the PDA and the infrared keyboard?

broadband

line-of-sight

reflective

scatter


The accounting department has received a new laser printer. According to the printer technical specification, the printer complies with the Bluetooth Class 2 specification. What is the maximum distance that any device could be expected to successfully send print jobs?

3 ft (1 m)

10 ft (3 m)

33 ft (10 m)

100 ft (30 m)

330 ft (100 m)
Which type of encryption key should be enabled on WPA-compliant devices?

28-bit

32-bit

64-bit

128-bit

255-bit
A user reports that his laptop works on AC power, but it is unable to work with the battery alone. What should be done to troubleshoot and fix the problem?

Replace the AC adapter.

Replace the battery.

Replace the CPU.

Replace the laptop.
Which two types of batteries should be completely discharged and then fully recharged to remove the charge memory? (Choose two.)

Li-ion

Ni-Cad

Ni-CH

Ni-Hid

NiMH

NiMO


The design department recently doubled the RAM capacity in all of the laptops. After the upgrade, the laptop users reported experiencing improved performance. Which operational benefit have the users noticed after the RAM increase?

The CPU reduces the number of operations by cycle.

The BIOS can use more RAM for I/O buffer space.

The CPU is now able to implement throttling.

The hard disk swap file is read less frequently.

The hard disk partitions are automatically extended


Which three standard procedures are commonly included in a laptop preventive maintenance schedule? (Choose three.)

cleaning

hard-drive maintenance

hardware updates

software acquisition

software updates

training
Which three laptop components should be cleaned during routine maintenance? (Choose three.)

CPU fan

exterior case

hard disk

cooling vents

keyboard

RAM
Which portable connection provides the user with the possibility of high-speed Internet connectivity?

cable

cellular

dial-up

DSL

mobile LAN
Which wireless technology offers a maximum data rate of 540 Mbps?

802.3a

802.3n

802.5

802.11g

802.11n
Which standard uses a 64-bit or 128-bit key to secure Wi-Fi services?

IPGP

SecIP

VPN

WiFiSP

WPA
Which two sources can be used to determine the amount of currently installed RAM on a computer? (Choose two.)

Add/Remove Hardware utility

Administrative Tools utility

POST screen

System Properties utility

Windows BIOS wizard

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