CompTIA+901_CrucialExam_1 Flashcards
You are an IT Support Technician for a large office building. A user is complaining their laptop often does not charge or stops charging if they move it. What is most likely the issue?
Laptop’s AC jack
The DC jack is where the power adapter feeds power to the laptops power supply, and can often break due to heat or become loose over time.
Of the following choices, which is an industry standard protocol used by computer networks to assign IP Addresses to network nodes and devices?
DHCP
Dynamic Host Configuration Protocol (DHCP) assigns IP’s to network devices. Domain Name Service (DNS) translates between IP Addresses and Domain names. Address Resolution Protocol translates between IP Addresses and MAC Addresses (Reverse-ARP, RARP does the opposite)
You are a Desktop Technician in a company’s IT Department. You need to find the hardware specifications of a desktop, however the device does not have an operating system installed. Which of the following options will display this information?
BIOS The BIOS (Basic Input Output System) firmware application will display information like the CPU, RAM and hard drive information. It is not necessary to have an operating system installed to utilize the BIOS.
Which of the following properly describes the purpose of a KVM?
Allows for one set of peripherals to control multiple computers. A KVM (Keyboard Video Mouse) Switch is used to use a single set of peripherals with multiple physical machines.
A customer is explaining their PC’s symptoms, but you already know what the issue is. Which is the most appropriate action?
Finish listening to their explanation and then explain the solutions.
You should always do your best not to interrupt a customer while they are speaking, unless it going to take an excessive amount of time.
What CAT version is RATED to provide a transmission speed of 1000 Mbps?
CAT5e is rated at 1000 megabits per second. CAT 6e is rated for 10 gigabits per second.
ECC type memory would be most commonly found in which type of device?
Server
ECC memory is most commonly found in servers because a server has a much higher load and fault tolerance requirement than an average computer or device.
Which of the following is the default TCP/IP port for the standard HTTP protocol?
TCP 80
The Hyper Text Transfer Protocol (HTTP) uses port TCP 80 by default. The encrypted version (HTTPS) uses TCP 443.
You need to configure a SOHO network to provide IP Addresses to devices on the network. Which feature should be enabled?
DHCP
Dynamic Host Configuration Protocol (DHCP) is the protocol responsible for assigning IP addresses.
Which of the following network topologies provides the most redundancy to protect against network outages?
Mesh
In a Mesh network topology every network node (router, switch, hub, etc) is connected to every other network node. If a connection breaks, the node can easily communicate with another through multiple existing connections. In reality this is too complex to implement in a large network, but it is still very common to see a hybrid network with several mesh style layers.
Which of the following properly describes the basic operating of a layer 2 network switch?
Transmits packets it receives to specific connections, based on MAC address.
The wording here is purposefully confusing. While a packet technically refers to layer 3, it is a common misnomer for “data transmitted on a network.” It is uncommon to hear someone say a frame was transmitted, simply saying packet is much more common. A switch will receive a packet with a frame inside it, and transmit the entire packet using the frame’s MAC address.
Which of the following is a GUI based BIOS software application?
UEFI (Unified Extensible Firmware Interface) is a GUI based BIOS application that has replaced many Legacy BIOS systems.
Which of the following options would typically be associated with encryption?
TPM (Trusted Platform Module) is a standard cryptoprocessor used to store cryptographic key.
Which of the following wireless communication standards requires LOS in order to operate?
IR
Infrared is a wireless technology that requires a clear path between communication devices. A good example of this, is a TV Remote.
A supervisor has asked you to update the BIOS on a customer’s laptop. Where is the best place to find the correct BIOS firmware?
Manufacturer’s website
The best place to find any firmware or software upgrade for a device is through manufacture support. Although it may be possible to find the correct software elsewhere, the manufacture is likely to have tested each version prior to release.
