CompTIA A+ Core 1 General Practice

Zigbee

Open-source wireless communication protocol used for home automation

Which motherboard connection is used to connect wireless network adapter cards?

PCIe x1

Which motherboard connection is used to connect wireless graphics cards?

PCIe x16

What port in the firewall blocks http access?

Port 80

What port in the firewall blocks https access?

Port 443

Which has more downtime, A virtual machine or physical server?

Physical server

What causes the “Pinwheel of death”?

Failure or corruption of memory

What to do when OS not found

Repair the GPT

Molex

4-pin power connectors

CMOS battery

Powers the motherboard when the computer is off

What port is used by SNMP by default?

Port 161

Digitizer

Touch-sensitive glass panel covering an LCD

IMAP

Synchronizes mail to all devices

Which Wi-Fi channels in the 2.4 GHz frequency band are only supported in Europe and Japan?

13

An address of ::1 is?

Loopback IPv6

An address of 127.0.0.1 is?

Loopback IPv4

DHCP server

Allows IP addresses to automatically get assigned

What ports do SMB use?

Port 139 and 445

Inverter

Powers the backlight source for an LCD screen

What cellular technology uses HSPA+ and EV-DO?

3G

What port does SLP use?

Port 427

What causes double images or ghost printing?

Drum

What port does LDAP use?

Port 389

What technology allows tap to pay?

NFC

SaaS

Cloud computing concept focused on the replacement of applications and programs with cloud-based resources

DaaS

Cloud service used to deliver virtual desktops to end-users over the Internet on a per-license basis

RJ-45

Terminate CAT 5e network cables

RJ-11

Terminate phone line cables

What does a clicking noise in a RAID device indicate?

Failing hard drive

What ports need to be open for FTP connection?

Port 20 and 21

VM escape

Malware running on a guest OS jumping to another guest or host

What type of IP address should be used for client workstations and devices?

Dynamic

IDE

40-pin ribbon cable

What can a bad or faulty RAM module cause

Continuous system reboots

What connection-oriented protocol uses TCP?

HTTPS

Hyperthreading

CPU technology that allows a processor to utilize multiple logical cores

Multi-core processor

CPU technology that allows a processor to utilize multiple physical cores

Rapid elasticity

Can be a security concern while using cloud service providers because it could result in a data breach from data remnants