A network engineer is designing a new data center interconnect between two facilities that are 3 kilometers apart. The link must support 100 Gbps and be highly reliable. The engineer has switches with QSFP28 ports. Which cabling and transceiver should be used?

QSFP+ modules with multimode fiber.

Ethernet ports with Cat6a copper cable.

SFP+ modules with copper DAC cables.

QSFP28 modules with single-mode fiber.

A network technician is configuring a legacy router that only has a serial console port. The technician's laptop has no serial port. Which approach should the technician take to establish a console connection?

Use a fiber optic cable to connect the laptop to the router's SFP port.

Use a USB-to-serial adapter to connect the laptop to the router's serial console port.

Connect an Ethernet cable from the laptop to the router's Ethernet port and use Telnet.

Insert a USB drive with a configuration file into the router's USB port.

Which of the following is a common use for a USB port on a network device?

Connecting to a fiber optic backbone

Connecting a serial cable for console access

Performing firmware updates from a USB flash drive

Providing Power over Ethernet to IP cameras

A network administrator is upgrading a switch's uplink from 1 Gbps to 10 Gbps. The switch has SFP+ ports, but the current uplink uses an SFP module with a copper RJ45 connector. The new uplink will use fiber to connect to a core switch 800 meters away. What should the administrator do?

Replace the switch with one that has built-in 10 Gbps copper ports.

Replace the copper SFP module with a 10 Gbps fiber SFP+ module.

Use a Cat6a Ethernet cable directly from the SFP+ port.

Keep the copper SFP module and use a media converter to extend the distance.

CiscoCertified Support Technician (CCST) Networking

Domain 4Objective 3

4.3. Identify the Various Ports on Network Devices. 100-150 Practice Questions (Page 2)

Part of the Infrastructure domain, which makes up ~18% of our current practice bank. Cisco does not publish an official question count, but from its 50-minute exam (~20–35 total, ~4–6 in this domain), expect 1–1 from this objective — we provide 38 practice questions to prepare you well beyond it. (estimate)

38questions here

8free pages

7concepts

Questions 6–10

6expert · hard
A network engineer is designing a new data center interconnect between two facilities that are 3 kilometers apart. The link must support 100 Gbps and be highly reliable. The engineer has switches with QSFP28 ports. Which cabling and transceiver should be used?
Select an answer first
7application · medium
A network technician is configuring a legacy router that only has a serial console port. The technician's laptop has no serial port. Which approach should the technician take to establish a console connection?
Select an answer first
8foundation · easy
Which of the following is a common use for a USB port on a network device?
Select an answer first
9expert · hard
A network administrator is upgrading a switch's uplink from 1 Gbps to 10 Gbps. The switch has SFP+ ports, but the current uplink uses an SFP module with a copper RJ45 connector. The new uplink will use fiber to connect to a core switch 800 meters away. What should the administrator do?
Select an answer first
10application · easy
A small office has a switch with 24 Ethernet ports. The administrator needs to connect 10 computers, 4 IP phones, and 2 IP cameras. The IP phones and cameras require PoE. How many PoE-enabled ports are needed on the switch?
Select an answer first

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