CCST Level 2

Question 1

Each operating system has built-in tools for configuring and troubleshooting network connectivity.

Accepted Answer

Networking utilities

Answer

Networking utilities are built-in software tools found in operating systems that allow users to configure and troubleshoot network connectivity. Examples include `ping` for testing reachability, `ipconfig`/`ifconfig` for viewing network interface settings, and `tracert`/`traceroute` for mapping network paths. These utilities are indispensable for diagnosing network problems, verifying configurations, and monitoring network activity directly from the command line.

Question 2

Software applications that allow remote access to command-line interfaces on network devices.

Accepted Answer

Terminal emulators

Answer

Terminal emulators are software applications that provide remote access to the command-line interface (CLI) of network devices like routers, switches, and servers. They typically use protocols such as SSH (Secure Shell) or Telnet to establish a connection. These tools enable network administrators to configure, manage, and troubleshoot devices from a remote workstation, making them essential for network operations.

Question 3

A network for connecting personal devices, like Bluetooth.

Accepted Answer

PAN (Personal Area Network)

Answer

A Personal Area Network (PAN) is a computer network used for communication among various personal devices within a very short range, typically a few meters. Technologies like Bluetooth, NFC, and sometimes USB are commonly used to establish PANs. This allows devices such as smartphones, tablets, and wearable technology to exchange data and synchronize information directly with each other.

Question 4

Provides virtualized computing resources over the internet.

Accepted Answer

IaaS (Infrastructure as a Service)

Answer

Infrastructure as a Service (IaaS) is a cloud computing model that provides virtualized computing resources over the internet. This includes virtual machines, storage, networks, and operating systems, which users can provision and manage themselves. IaaS offers the most control over the underlying infrastructure compared to PaaS or SaaS, allowing organizations to build and run their own applications and operating systems with high flexibility.

Question 5

Host A receives a frame and discards it after determining it is corrupt. Which OSI layer checks frames for errors?

Accepted Answer

Data-link

Answer

The Data-link layer (Layer 2) of the OSI model is responsible for detecting and often correcting errors within frames as they are transmitted across a physical link. It uses mechanisms like Cyclic Redundancy Check (CRC) to ensure data integrity. If a frame is found to be corrupt upon reception, the Data-link layer will discard it, preventing damaged data from being passed up to higher layers.

(CCST) Cisco Certified Support Technician Practice Test

(CCST) Cisco Certified Support Technician Practice Test

CCST Level 2