What is the purpose of citations?

The /tmp directory is a temporary directory and will not exist on a system at all times. True or False?

jeka94

Answer:

False.

Explanation:

The /tmp directory is a directory that contains files that are required temporarily and also for temporary storage of data.The data inside the /tmp directory gets deleted when the system boots or shuts down.Since the directory exists permanently the content inside it is temporary.

So we can conclude that the answer is False.

5 0

3 years ago

Suppose a worker needs to process 100 items. the time to process each item is exponentially distributed with a mean of 2 minutes

stiks02 [169]

Suppose a worker nneeds to process100 items

7 0

3 years ago

) how many bits are used for host number on the child network (subnet) , b) how many usable addresses can exist on this child ne

vovikov84 [41]

Answer:

Machine’s IP=126.127.85.170, Machine’s Netmask=/27, Parent’s Netmask=255.255.240.0 .

a) Machine's Netmask = /27 : therefore no. of remaining bits for hosts =32-27 = 5 bits.

b) No. of usable addresses in the child network = 25 -2 = 32-2 =30 [Since first(network ID of the machine) and last ip (broadcast address of the machine ) addresses are not used ]

c) first usable address is on this child network (subnet) =

First, find out the network id of machine can be found out by doing bitwise AND machine's IP and Machine's subnet mask :

01111110. 01111111.01010101.10101010 (IP)

11111111. 11111111 .11111111 .11100000 (Subnet Mask)

01111110. 01111111. 01010101.10100000 (Network ID )

first usable address is on this child network (subnet) : 01111110. 01111111. 01010101.10100001

: 126.127.85.161

d) what the last usable address is on this child network (subnet) : 01111110. 01111111. 01010101.10111110

: 126.127.85.190

e) what the child network’s (subnet's) broadcast address is :

In the directed broadcast address , all the host bits are 1. Therefore, broadcast address :

01111110. 01111111. 01010101.10111111 (126.127.85.191)

f) what the child network's (subnet's) network number is : Network ID has already been calcuulated in part c .

01111110. 01111111. 01010101.10100000 (126.127.85.160)

6 0

3 years ago

Javier develops sophisticated fashion websites. He has been asked by the owner of a leading fashion brand to create web content

saul85 [17]

Answer:

hyperlinks

Explanation:

Javier should use hyperlinks to show the users the possible choices for their clothing. This is really a terrible question and not likely in any real world scenario. Fashion is always forward thinking and on the cutting edge. When was the last time you went to a fashion website and were left with only choices to click on a hyperlink? As Tim Gun would say "Make it work." If I were able I would include a hyperlink using the previous sentence as the clickable link with a URL reference to

https : //en.wikipedia.org/wiki/Tim_Gunn (spaces after https to make this link not get censored)

to illustrate the way to show that hyperlinks have no real application on modern fashion website. But they would have great utility here inside the answers section. But they also are cause for a securtity concern and may be killed by the moderators

7 0

3 years ago

Using your favorite imperative language, give an example of each of the following. (a) A lexical error, detected by the scanner

Travka [436]

Explanation:

a. int foo+; (foo+ is an invalid identifier because + is not a valid char in identifiers)

b. foo int; (Syntax error is any error where the syntax is invalid - either due to misplacement of words, bad spelling, missing semicolons etc.)

c. Static semantic error are logical errors. for e.g passing float as index of an array - arr[1.5] should be a SSE.

d. I think exceptions like NullReferenceException might be an example of DME. Not completely sure but in covariant returns that raise an exception at compile time (in some languages) might also come in this category. Also, passing the wrong type of object in another object (like passing a Cat in a Person object at runtime might qualify for DME.) Simplest example would be trying to access an index that is out of bounds of the array.

8 0

3 years ago