21) The ______ refers to the memory address that used by a software to communicate with a hardware. A) I/O port B) stack C) subroutine D) A&C E) None of the above 22) As an example of I/O ports in HCS 12 are ______. A) PORTB B) PORTH C) PORTJ D) PORTP E) All the above
Added by Roberto J.
Close
Step 1
The options are I/O port, stack, subroutine, A&C, and None of the above. Show more…
Show all steps
Your feedback will help us improve your experience
Sri K and 78 other AP CS educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
1. Which of the following are invalid uses of immediate addressing mode? a. MOV A,#24H b. MOV R1,30H c. MOV R4,#60H 2. Identify the addressing mode for each of the following. a. MOV B,#34H b. MOV A,50H c. MOV R2,07 d. MOV R3,#0 e. MOV R7,0 f. MOV R6,#7FH g. MOV R0,A h. MOV B,A i. MOV A,@R0 j. MOV R7,A k. MOV A,@R1 3. Indicate the address assigned to each of the following. a. R0 of bank 0 b. ACC c. R7 of bank 0 d. R3 of bank 2 e. B f. R7 of bank 3 g. R4 of bank 1 h. DPL i. R6 of bank 1 j. R0 of bank 3 k. DPH l. P0 4. Which register bank shares space with the stack? 5. In accessing the stack, we must use ________ addressing mode.
Sri K.
Which of these ports would you be least likely to find open to a native service on a Linux host? a) 139 b) 53 c) 22 d) 443 2. What is the netmask of the network associated with host 128.227.224.196 having 8,190 hosts? a) 255.255.255.192 b) 255.255.192.0 c) 255.255.224.0 d) 255.255.255.0 3. Which of these precautions will not interfere with a traditional SSLStrip attack from working? a) Disallowing multiple MAC addresses for a single host in a network b) Always using https c) Using a separate process in each browser d) Navigating to a site whose HSTS super-cookie is loaded in your browser 4. Although nmap warns about -Pn slowing down a scan, proxychains nmap -Pn 10.70.184.1-254 -p 445 actually runs faster than the following nmap: proxychains nmap 10.70.184.1-254 -p 445. Why would that be? a) When -Pn isn't specified, both UDP and TCP ports are scanned. b) If ping fails, nmap will check an extra port (80) c) Because ICMP echo replies are always delivered as fast as port 445 replies. d) When -Pn isn't specified, the 10,000 most popular ports will be scanned. 5. What can Linux file access control lists do that normal file modes cannot do? a) They can provide special permission sets for individual users. b) They can set a file to run as the root user when executed, no matter who the owner of the file is. c) They can restrict permissions for a group of users in /etc/group d) They can set permissions on a link to a file. 6. Which of these ISO layer messages is likely to have the largest number of embedded protocol data units in it? a) Datalink. b) Session c) Network d) Application
Akash M.
The number 23.25 translated into a normalized floating-point number, with a 10-bit mantissa and a 6-bit exponent: A) 0110110000 000101 B) 0101110000 000001 C) 0101110100 000101 D) 0000010111 000100 Decimal number: A) 101 B) 41.7875 C) 41.5875 D) 41.6875 Two registers involved in the fetch-execute cycle are: A) The program counter and the stack pointer. B) The Accumulator and the program counter. C) The accumulator and the current instruction register. D) The memory address register and the memory data register. 3) A NAND gate has inputs A and B. Its output is connected to both inputs of another NAND gate. An equivalent gate for these two NAND Gates is C. In register operands: A) Cache B) Second C) The CF D) Primary In an instruction address: A) Immediate B) Direct C) Indirect D) Index
Umar Sohail Q.
Recommended Textbooks
Computer Science and Information Technology
Introduction to Programming Using Python
Computer Science - An Overview
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD