Questions I Got Wrong Flashcards
A network technician troubleshoots a computer that is getting a limited connectivity message and an address in the automatic private IP addressing (APIPA) 169.254.x.y range instead of receiving a lease for an IP configuration from the DHCP server. What are some steps the technician should take to troubleshoot this issue? (Select all that apply.)
A. Establish the scope of the issue.
B. Check the configuration of patch cords.
C. Check the VLAN configuration.
D. Sample the elapsed time between arriving packets.
A. Establish the scope of the issue.
B. Check the configuration of patch cords.*
C. Check the VLAN configuration.
A network administrator configures an authentication, authorization, and accounting (AAA) server. Which component in the AAA server setup does not store authentication credentials, but acts as a transit to forward data between devices?
A. Supplicant
B. NAP
C. RADIUS
D. AAA
B. NAP
The network access point (NAP) or network access server (NAS) are appliances, such as switches, access points, and VPN gateways. These do not store authentication credentials but simply act as a transit to forward this data between the AAA server and the supplicant.
The supplicant is a component of the authentication, authorization, and accounting server and is the device requesting access, such as a user’s PC or laptop.
Remote Authentication Dial-in User Service (RADIUS) is a protocol that manages remote and wireless authentication infrastructures and implements AAA.
In an authentication, authorization, and accounting (AAA) configuration, the AAA server is the authentication server positioned within the local network.
A web designer plans out a new website, including the uniform resource locators (URLs) for each page. What are parts of the URL that the web designer will need to consider? (Select all that apply.)
A. File server
B. FQDN
C. Protocol
D. File path
B. FQDN
C. Protocol*
D. File path
The designer will need to consider the protocol which describes the access method and will likely be HyperText Transfer Protocol (HTTP) or HyperText Transfer Protocol Secure (HTTPS).
An energy company is upgrading its systems across multiple sites. The company would like to control the systems with software that communicates with the current programmable logic controllers (PLCs) and new RTUs. What kind of system is the company upgrading to?
A. OT
B. SCADA
D. Embedded system
D.ICS
B. SCADA
The company is upgrading to a supervisory control and data acquisition (SCADA) system which takes the place of a control server in large-scale, multiple-site ICSs.
An embedded system network is known as an operational technology (OT) network to distinguish it from an IT network.
An embedded system is an electronic device that performs a specific, dedicated function. Embedded systems might typically have operated within a closed network.
An industrial control system (ICS) provides mechanisms for workflow and process automation. An ICS controls machinery used in critical infrastructures, such as power and water suppliers.
A support technician is installing a new SATA hard drive on a new computer. What is the best type of cable connector the technician will plug in to supply power to the drive?
15-pin connector
7-pin connector
4-pin connector
USB connector
15-pin connector.
The 7-pin connector is for data and does not supply power to the drive.
Which of the following statements regarding modern connectors and ports is untrue?
They use edge contacts.
They use internal connection points.
They sometimes use keying.
They can be reversible.
They use internal connection points.
To mitigate the heat a high-end gaming system will generate, an engineer is using a liquid-based cooling system in the design. Which of the following components are NOT a part of an open-loop, liquid-based cooling system?
Fans
Traditional heat sinks
Water blocks
Water loop
Traditional heat sinks
A user started a brand-new Windows computer and received a “boot device not found” error. When the technician inspects it, what will they suspect the problem is?
POST
BSOD
GPT
Pinwheel
GPT
The technician will suspect the problem is with the GPT as this is a modern boot scheme where the boot information is not on a single sector but still identifies partitions and OS boot loaders.
A wireless network technician is upgrading the access points in a conference center to provide better Wi-Fi connectivity during conferences. What standard will provide connectivity to the most clients?
MU-MIMO
Wi-Fi 5
OFDMA
Wi-Fi 6
Wi-Fi 6
Wi-Fi 6 introduces orthogonal frequency division multiple access (OFDMA) which can work alongside MU-MIMO to improve client density.
Wi-Fi 6 (802.11ax) can support up to eight clients, giving it better performance in congested areas. Wi-Fi 6 also adds support for uplink MU-MIMO and OFDMA.
A network technician is trying to locate a box of Cat 6A UTP cable in a closet full of unmarked boxes with different types of cabling in them. How will the technician be able to tell which box contains Cat 6A UTP cabling? (Select all that apply.)
The words “twisted pair cable” is on the cable jacket.
The TIA/EIA standard is on the cable jacket.
The Cat specification is on the cable jacket.
The cable type is on the cable jacket.
The Cat specification is on the cable jacket.
The cable type is on the cable jacket.
The technician can locate the cable by looking at the cable jacket since manufacturers print the Cat specification on the cable jacket. The technician would find “CAT 6A” on the cable jacket.
The technician will locate the cable by looking at the cable jacket because manufacturers print the cable type, such as unshielded twisted pair (UTP) or foiled/unshielded twisted pair (F/UTP) on the cable jacket.
A network technician is checking the records to ensure all the host names match up with the proper IP addresses for the network. What records is the technician checking? (Select all that apply.)
A
MX
FQDN
AAAA
A (IPV4)
AAAA (IPV6)
MX records point to an A (or AAAA) Record via server name.
