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2 years ago

Which two functions are provided to users by the context-sensitive help feature of the Cisco IOS CLI? (Choose two.)

Computers and Technology

1 answer:

Svetach [21]2 years ago

5 0

Answer:

B. displaying a list of all available commands within the current mode*

D. determining which option, keyword, or argument is available for the entered command*

Explanation:

Cisco IOS are known for using Command line interface(CLI) that allows execution of certain commands

Cisco system make use devices such as router, switch and others. All these Commans comes with privileged levels that gives access to user that have privilege to access between level 0 and 15.

It should be noted that two functions that are provided to users by the context-sensitive help feature of the Cisco IOS CLI are ;

✓displaying a list of all available commands within the current mode

✓ determining which option, keyword, or argument is available for the

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E xercise 17.2.4: The following is a sequence of undo-log records written by two transactions T and U: < START T>; ; <

masya89 [10]

Answer:

Check the explanation

Explanation:

The following is a sequence of Undo — log records written by two transactions.

<START 1>; <F, A, 10>; <START U>; <U, B, 20>; <F, C, 30>; <U, D, 40>; <COMMIT U>; <T, E, 50>; <COMMIT T>; (a) < START U >;

If the system crashes after the log < START U >,

Then we have log records will be shown below.

<START U>;

<T, A, 10>;

<START T>;

SYSTEM CRASHED

The recovery manager sees the Undo - Redo log and inspect the both trans-actions T and U are not committed. Then those elements changed by both transactions are arranged to their old values.

Transaction T changes the element A.
Then the Element A is arranged to old value A=10.
Transaction U did not change any existing element in the records.
So, not anything to do with transaction U.

(B) < T, E, 50>;

If the system crashes after the log < T, E, 50>;

Then we have log records will be shown below .

START T>;

<T, A, 10>;

<START U>;

<U, B, 20>;

<T, C, 30>;

<U, D, 40>;

<COMMIT U>;

<T, E, 50>;

SYSTEM CRASHED

The recovery manager sees the Redo logs and inspect the transaction U is committed or not. Such changes made by transaction U are reached to disk.

• So much the recovery manager arranged the elements to their recent values changed by transaction U.

• Transaction U changed the elements B and its records <U, B, 20>with re-cent values.

• Transaction U changed the elements D and its records <U, D, 40>with recent values.

• The transaction T is not committed.

• Then the elements changed by transaction T are arranged to old values.

• Then element A is arranged to 10, C is arranged to 30 and E is arranged to 50.

7 0

2 years ago

Write an expression that executes the loop body as long as the user enters a non-negative number. Note: If the submitted code ha

Delicious77 [7]

Answer:

Following are the program in C++ language

#include <iostream> // header file

using namespace std; // namespace

int main() // main function

{

int number=0; // variable declaration

while(number>-1) // iterating the while loop

{

cout<<"body"<<endl; // dsiplay the statement

cin>>number; // Read the value by the user

}

cout<<endl<<"Done";// dsiplay the statement

return 0;

}

Output:

body

-8

Done

Explanation:

Following are the description of the statement

Declared a variable "number" of int type and initialized with 0 to them
iterating the while loop. In this loop print the message "body" and Read the value by the user in the "number" variable. This loop will be executed repeatedly until the user do not read the negative value.
After the execution of the while loop, it prints the message "Done".

4 0

2 years ago

Ryan has made a presentation of ten slides, which he wants to display in sequence after a specific time interval. Which element

alukav5142 [94]

Answer:

Slide transition.

Explanation:

PowerPoint application can be defined as a software application or program designed and developed by Microsoft, to avail users the ability to create various slides containing textual and multimedia informations that can be used during a presentation.

Some of the features available on Microsoft PowerPoint are narrations, transition effects, custom slideshows, animation effects, formatting options etc.

Basically, the views that are available on the Microsoft PowerPoint application includes;

1. Slide Sorter.

2. Notes Page.

3. Reading Pane.

4. Presenter view.

In this scenario, Ryan has made a presentation of ten slides, which he wants to display in sequence after a specific time interval.

Using slide transition in the presentation software, Ryan can make the slides appear, one after the other, after a specific time interval.

Slide transition is an inbuilt feature of a presentation software that automatically changes the slides at regular intervals.

3 0

2 years ago

When should a developer begin thinking about scalability? 1 during the design phase 2during testing 3when traffic increases by 2

Tanzania [10]

Answer:

in my opinion 4

Explanation:

when the system is available to users

(sorry and thanks)

4 0

2 years ago

If a user was complaining about a "slow computer" due to a program that uses a significant amount of memory, what part or parts

Sedaia [141]

Answer:

The Random-Access Memory (RAM) should be upgraded.

Explanation:

Since the particuar apllication is taking alot of memory space it means that an ugrade/ installation of a bigger RAM would help the system work better while using the program

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2 years ago