QUESTIONS WITH ACCURATE ANSWERS
1000BaseT
Explanation:
1000BASE-T refers to Gigabit Ethernet over copper twisted pair cabling. Gigabit
Ethernet works at 1000 Mbps (or 1 Gbps). 1000BASE-T is the mainstream choice
of standard for most LANs.
NOTE: 10GBASE-T refers to a copper cabling standard working at 10 Gbps. correct
answer A technician looks to wire an office for a medium-sized local area network
(LAN). When considering the available standards and speeds, the technician
decides to implement Gigabit Ethernet. What specific standard does the
technician use?
137-139 - NetBIOS/NetBT
Explanation:
Ports 137-139 (UDP/TCP) are used for NETBIOS over TCP/IP communications.
NETBIOS is used on a modern network to support networking features for legacy
versions of Windows. correct answer A manufacturing firm uses an older
Windows NT computer to operate a unique piece of machinery. To support such a
legacy system on the network, what common port settings are enabled for
communications?
2.5 in.
Explanation:
,A 2.5-inch drive is the standard size for a laptop magnetic HDD. On laptops, it is
also important to consider the depth of the drive, since those vary by
manufacturer and model.
Wrong Answer Explanation:
A 3.5-inch drive is the standard size for a desktop magnetic HDD. This drive
configuration is too large for most laptops to utilize internally. Laptop drives are
commonly 2.5 inches.
A 1.8-inch drive is commonly an mSATA SSD drive, not an HDD.
The M.2 SSD adaptors interface directly with the PCI express bus. The most
popular length is 80 mm. correct answer A laptop technician in a large
corporation needs to upgrade the hard drives on employee laptops. Currently, the
laptops have standard 5400 rpm 500 Gb magnetic drives. The technician needs to
know what physical drive size to order. What is the normal size for a laptop
magnetic drive?
20+4-pin
Explanation:
Most modular power supply units (PSUs) have a 20+4-pin P1 adapter cable for
compatibility with older motherboards with a 20-pin port. correct answer A
technician builds a spare computer with an older motherboard and purchases a
new modular power supply. What type of motherboard connector will the power
supply most likely provide?
48
,Explanation: 00-00-00-00-00-00
A MAC address consists of 48 binary digits, making it 6 bytes in size. MAC
addresses are represented in hexadecimal and each hex digit represents half a
byte. correct answer How many binary digits are found within a media access
control (MAC) address?
5
Explanation:
RAID 5 requires a minimum of three drives but can be configured with more.
When configuring RAID 5, an equal portion of each disk is used for parity. correct
answer An engineer configures 6 disks in a workstation to be part of a redundant
array of independent disks (RAID) volume where one-sixth of the space on each
disk will be used for parity. Which RAID type does the engineer implement?
802.3af Power over Ethernet (PoE)
Explanation:
The 802.3af standard allows powered devices to draw up to about 13 W. Power is
supplied as 350mA@48V and limited to 15.4 W. Usable wattage usually falls
around 13 W.
Others for reference:
The 802.3at (PoE+) standard allows powered devices to draw up to about 25 W,
with a maximum current of 600 mA.
, The 802.3bt (PoE++ or 4PPoE) supplies up to about 51 W (Type 3) or 73 W (Type
4) usable power. correct answer An engineer plans a new wireless infrastructure
rollout. The requirement is for access points that use 48V of power and 13 watts.
Which specific standard does the engineer implement?
Aging battery
AC Adapter correct answer A user states that a smartphone does not hold a
charge for as long as it did in the past and seems to charge slowly. The change
was noticed over the last few months. What could be the cause?
Answers to display issues. 1Q> 1A, 2Q>2A, etc...
1A. Adjust Brightness/contrast
2A. Check or replace cabling
3A. Try to reactivate via touch or software
4A. Use automatic screensavers
5A. Calibrate color to output device
6A. Verify source in OSD menu correct answer Troubleshooting display issues.
1Q. Image appears very dim
2Q. Color glitches. Purple or green horizontal lines
3Q. Stuck or dead pixels
4Q. Image burn-in creating ghosted elements
5Q. Artwork color output different than displays's
6Q. No image displayed
Antenna Gain