How much RAM memory is recommended for your computer to be used as a digital darkroom?

Ksivusya [100]

Answer:

Revisiting "Build a Tower"

Recall in the last section how we made Karel make a tower of tennis balls. We told Karel to move() and turnLeft() and putBall() until we had a tower. At the end of the program, Karel was still at the top of the tower, like as in the picture below.

Stuck at top

Suppose that now we want Karel to come back down from the top of the tower. The first thing we need to do is get Karel facing in the right direction. One way to do this is to tell Karel

turnLeft();

And then tell Karel to

move();

back to the bottom of the tower.

However, telling Karel to turnLeft() three times is not very readable. That's a lot of writing when all we really want is to tell Karel to "turn right."

Explanation:

Hopefully it would help.

8 0

3 years ago

What is the maximum number of VLANs that can be configured on a switch supporting the 802.1Q protocol? Why?

KATRIN_1 [288]

Answer:

Under IEEE 802.1Q, the maximum number of VLANs on a given Ethernet network is 4,094 (4,096 values provided by the 12-bit VID field minus reserved values at each end of the range, 0 and 4,095).

Explanation: found it from google

6 0

3 years ago

Read 2 more answers

Keeping in mind the role the order of precedence plays in equations, what would Excel display as the result of the following equ

Arlecino [84]

Keeping in mind the role the order of precedence plays in equations, what would Excel display as the result of the following equation?

=(24+75)/(6*3)
=99/18
= 5.5
18)99.0.
90.0
9.0

D. 5.5

6 0

3 years ago

hich type of denial of service (DoS) attack occurs when a name server receives malicious or misleading data that incorrectly map

shusha [124]

Answer:

DNS poisoning

Explanation:

This type of attack is known as DNS poisoning it is a very common attack that focuses on trying to redirect users of the site that has been attacked towards fake servers. These fake servers belong to the attackers and are used to collect the user's private data, which can then be used by the attackers for a wide range of malicious acts. Aside from stealing user information, this malicious data travels alongside regular user data allowing it to infect various servers easily.

7 0

3 years ago

A digital computer has a memory unit with 16 bits per word. The instruction set consists of 72 different operations. All instruc

OLga [1]

Answer:

a. 7 bits b. 9 bits c. 1 kB d. 2¹⁶ - 1

Explanation:

a. How many bits are needed for the opcode?

Since there are 72 different operations, we require the number of bits that would contain 72 different operations. So, 2ⁿ ≥ 72

72 = 64 + 8 = 2⁶ + 8

Since n must be an integer value, the closest value of n that would contain 72 different operations is n = 7. So, 2⁷ = 128

So, we require 7 bits for the opcode.

b. How many bits are left for the address part of the instruction?

bits left = bits per word - opcode bit = 16 - 7 = 9 bits

c. What is the maximum allowable size for memory?

Since there are going to be 2⁹ bits to addresses each word and 16 bits for each word, the maximum allowable size for memory is thus 2⁹ × 16 = 512 × 16 = 8192 bits.

We convert this to bytes

8192 bits × 1 byte/8 bits = 1024 bytes = 1 kB

d. What is the largest unsigned binary number that can be accommodated in one word of memory?

Since the number go from 0 to 2¹⁶, the largest unsigned binary number that can be accommodated in one word of memory is thus

2¹⁶ - 1

6 0

3 years ago