1. Given the xor-encoded file content is 000111111000001111100001, and the key is 010010101101011010110100, what is the original file content represented in hexadecimal?
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Please write the answer in table first and then at the end of the question.
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- How many block pointers will be required for a text file with 100,000 ascii characters with a block size of 4096 bytes and a block pointer size of 64 bits?You are given a text file of size 60 MB, which is to be encrypted using steganography in the low-order bits of each color in an image file. What size image would be required in order to encrypt the entire file? What size would be needed if the file were first compressed to a third of its original size? Give your answer in pixels, and show your calculations. Assume that the images have an aspect ratio of 3:2, for example, 3000 × 2000 pixels.A disk has a capacity of two tera-byte size. Say the file system uses a multi-level inode structure for locating the data blocks of afile.The inode stores pointers to data blocks, including a single indirect block, a double indirect block, and several direct blocks in the 64 B of available space.Now, it is given that the disk has a block size of 512 B. The maximum file size that can be stored in such a file system in MB (round off upto 2 decimal places).
- 2. If we ignore the audio data in a video file, a video file is just a collection of many individual frames (i.e., images). What is the main reason that a video file can achieve a much higher compression ratio than a file that contains a single image file?Consider a file system that uses inodes to represent files. Disk blocks are 8 KB in size, and a pointer to a disk block requires 8 bytes. This file system has 12 direct disk blocks, as well as 1 single and 1 double indirect disk blocks. What is the maximum size of a file that can be stored in this file system in GBs (round to the nearest integer)?1. two digits 8 & 3, Convert it to a 7-bit binary number (83 → 0010111) 3. Do the analysis of state-tape contents as in diagram (*) in ex.1 for a task of generating parity bit for the number. For the example, initial tape contents should be ΦΦ0010111Φ, and the parity bit is then 0 → final contents on the tape is Φ00010111Φ
- Assume an inode has 14 direct pointers and two pointers to indirect blocks. The indirect blocks are 4KB big, and pointers are 4-bytes in size. How many data blocks can be accommodated by this file in total?52. The concept in which extra bit or byte is stored for record deletion and that extra stored bit is called a. insertion marker b. deletion marker c. modifying marker d. static markerSuppose that there is a file system with blocks of 512 bytes in size. For each inode, there are 20 direct blocks, 2 singly-indirect blocks, and 2 doubly-indirect blocks. The size of a pointer is 4 bytes. Calculate the maximum possible size of a file in bytes. Show your work.
- Given the following bit vector named Tablet: Tablet = 1 1 1 0 1 0 1 0111100110001 i) Draw the secondary disk storage to represent the unallocated file. ii) Consider File S6 Lite with the size of 4 blocks and File iPad with the size of 5 blocks are to be allocated into the secondary storage. Draw the secondary disk storage for both files using index allocation.What are the contents of the file registers WREG, 0x010, 0x020, 0x410, 0x420, after the following program is executed? Assume that all the register contents are initially zero. Answer here WREG Ох010 0x020 0x410 Ox420 MOVLB Ox4 MOVLW ОХА MOVWF Оx20, ВANKED ; MOVWF Ox10, ACCESS; MOVLB Ox0 MOVLW OXBA MOVWF Ox10, BANKED ; MOVWF Ох20, АССESS %;22. Given that A's code point in ASCII is 65, and a's code point is 97. What is the binary representation 19. Carefully look at following representations of a character in UTF-8. Identify how many bytes/octetsae used in this and what is the actually binary code being represented through it ? 'A' in ASCII ? (and whať's its hexadecimal representation). What is the binary of s (a) 11 1101|11 1011|10|10 10 1 100 | 10 10 11110 (b) | 110 00|01 1010 1001 (c) 00100100 (d) 11100 010 100000| 10 10101 100 20. Represent KATAKANA letter RA[Unicode code point U+30E9 (hex) in UTF-8 and UTF-32 elk schemes. 21. Represent musical symbol F CLEF in UTF-8 and UTF-32 encoding schemes. / [Unicode code point U+1D122, Binary value : 111010001 00 ASCII ?