800-150 Practice Questions

Kickstart Image→ Specialized bootloader that initializes the hardware

System Image→ Contains the full NX-OS kernel and operating system

Global configuration command mode→ Provides access to the broadest range of commands that affect the device as a whole

EXEC command mode→ Allows for displaying device status and configuration information

This knowledge is covered underCisco IOS/NX-OS Software Basicsin the FLDTEC training:

Kickstart Image:Alightweight bootloader image that initializes hardware and launches the system image. It's comparable to ROMMON in traditional IOS devices.

System Image:Includes the full NX-OS operating system, services, drivers, and kernel required to run the device.

Global Configuration Mode:After entering privileged EXEC mode (enable), this mode allows changes to system-wide settings such as interfaces, routing protocols, and VLANs.

EXEC Mode:Has two levels—User EXECandPrivileged EXEC. User EXEC provides limited diagnostic commands, while Privileged EXEC allows more extensive system views (show commands, reload, etc.).

Understanding these layers is essential when maintaining or restoring NX-OS devices in field environments.

In the context ofWide Area Networks (WANs), the key objective is to connect geographically separated networks using service provider infrastructure. The FLDTEC course emphasizes that WAN environments typically involve devices that can handle different physical transmission mediums and protocols.

Modems:

Modulate and demodulate analog signals to digital signals.

Used in WAN environments to connect over analog lines like DSL or leased lines.

Essential for interfacing between digital routers and analog telephone networks.

Optical Fiber Converters:

Also known asmedia converters, they are used to convert electrical signals to optical signals (and vice versa) for fiber transmission.

Common in WAN scenarios where long-distance high-speed transmission over fiber is required.

Incorrect Options:

A.  

Hubs: Obsolete Layer 1 devices used in LANs, not suitable for WANs.

D.  

Network Interface Cards (NICs): Used in end devices for LAN connectivity.

E.  

Wireless Access Points: Typically used in WLANs within local premises, not WAN infrastructure.

This aligns withCisco’s WAN architecture fundamentalsas highlighted in FLDTEC under “Cisco Equipment and Related Hardware.”

When configuring a terminal emulator (such as PuTTY, Tera Term, or HyperTerminal) to connect to the console port of a Cisco switch, the standard settings are as follows:​

Speed (baud rate): 9600This is the default transmission speed for Cisco console ports, ensuring compatibility across various devices.​

Data bits: 8This setting specifies that each character transmitted consists of 8 data bits, which is standard for most serial communications.​

Parity: NoneNo parity bit is used, meaning there is no additional error-checking bit appended to each character.​

Stop bits: 1One stop bit indicates the end of a character transmission.​

Flow control: NoneNo flow control is employed, allowing continuous data transmission without hardware or software-based pausing.​

Therefore, optionsC (Speed: 9600)andD (Data bits: 8)are correct. Options A (Stop bits: 2), B (Flow control: Hardware), and E (Parity: Even) deviate from the standard settings and may result in communication issues if configured.​