Free 4A0-100 Practice Test Questions 2026

219 Questions


Last Updated On : 13-Mar-2026


Topic 1, Volume A

Which of the following describes the Alcatel-Lucent 7750 SR Input/Output Module (IOM)?


A.

Small optical module available in a variety of formats.


B.

Contains a CPU for managing the forwarding hardware in each flexible fast path.


C.

Converts traffic from an external standard format to an internal format.


D.

Contains the CPU that runs the routing protocol software as well as the switch fabric.





B.
  

Contains a CPU for managing the forwarding hardware in each flexible fast path.



A typical Alcatel-Lucent 7750 SR Media Dependent Adapter (MDA) interfaces with:


A.

A Small Form-Factor Pluggable (SFP) module.


B.

TheCentral Processing Unit (CPU).


C.

The Control Plane.


D.

The Switch Fabric.





A.
  

A Small Form-Factor Pluggable (SFP) module.



Which of the following best describes the operation of the Media Dependent Adapter (MDA)?


A.

The MDA contains the flexible fast path complex used for forwarding data.


B.

Excess data is discarded by the MDA and the remaining data forwarded for QoS processing.


C.

The MDA buffers data and applies Quality of Service (QoS) to classify and treat the data
appropriately.


D.

The MDA converts data from its incoming physical format into an internal format and provides
some minimal buffering.





D.
  

The MDA converts data from its incoming physical format into an internal format and provides
some minimal buffering.



What is NOT a function of the IOM?


A.

It forwards the data to the switch fabric.


B.

It discards excess data packets.


C.

It converts the incoming data to an internal format.


D.

It performs Quality of Service operations and buffers incoming data.





C.
  

It converts the incoming data to an internal format.



Which compact flash on a Control/Switch processor of an Alcatel-Lucent 7750 router stores the
runtime image and running configuration?


A.

CF 1


B.

CF 2


C.

CF 3


D.

Both A and B





C.
  

CF 3



One of the tasks of the boot options file (BOF) is to:


A.

Specify authorization information to control access to the router.


B.

Define an IP address for the CPMEthernet port.


C.

Initialize the hardware.


D.

Set the date/time for the system.





B.
  

Define an IP address for the CPMEthernet port.



Which of the following user interface sessions are accessible through Telnet and Secure Shell
(SSH) on the Alcatel-Lucent 7750 SR and 7450 ESS?


A.

Graphic User Interface (GUI).


B.

Node Management Terminal Interface (NMTI).


C.

Command Line Interface (CLI).


D.

All of the above.





C.
  

Command Line Interface (CLI).



Which of the following user interface sessions are accessible through Telnet and Secure Shell
(SSH) on the Alcatel-Lucent 7750 SR and 7450 ESS?


A.

Graphic User Interface (GUI).


B.

Node Management Terminal Interface (NMTI).


C.

Command Line Interface (CLI).


D.

All of the above.





C.
  

Command Line Interface (CLI).



You are working from a particular Command Line Interface (CLI) context, and want to see the
commands available from your current context. What command can you issue to view this
information?


A.

view tree


B.

tree


C.

info detail


D.

info





B.
  

tree



What is available for auto completion of commands within the CLI on the Alcatel-Lucent 7750 SR
Service Router?


A.

Type the first letters of the command, then press Ctrl C


B.

Type the first letters of the command, then press Esc


C.

Type the first letters of the command, then press Tab


D.

Type the first letters of the command, then type ?





C.
  

Type the first letters of the command, then press Tab



Which of the following is a File command in the File System context of the Command Line
Interface (CLI)?


A.

time-display


B.

help


C.

type


D.

terminal





C.
  

type



What must occur for a LAG to become operational?


A.

There must be multiple ports assigned to the LAG.


B.

All ports in the LAG must be configured with the same characteristics.


C.

Auto-negotiation must be enabled on all ports in the LAG.


D.

All of the above.





B.
  

All ports in the LAG must be configured with the same characteristics.




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