Answer:
Answer is given in the attached document.
Explanation:
The explanation is given in the attached document.
Answer:
It is necessary to acknowledge the SYN and FIN, so the sequence number is incremented, if not the FIN would be seen as a data packet prior an awaited FIN.
Explanation:
TCP or transmission control protocol is a transport layer protocol of the OSI network model in networking. Unlike UDP or user datagram protocol, it is connection oriented, meaning it must establish a connection between both destination and source in the network.
It uses a three way handshake to establish and close connection after transmission. After the SYN packet is acknowledged, the sequence number of the data packet increases to the last and finally increases to a FIN packet to show the end of transmission.
Answer:
9
Explanation:
lets do calculations with ONLY the rightmost digits, ie., 7 + 6 = 4, so we're ignoring the carry.
Then, following must be true as well:
7+5 = 3
7+4 = 2
7+3 = 1
7+2 = 0 <= this reveals our base 9
7+1 = 8
7+0 = 7
Answer:
d. SELECT DISTINCT V_CODE FROM PRODUCT;
Explanation:
The query basically lists a unique value for V_CODE from PRODUCT table.
Option a is incorrect because it uses ONLY keyword which does not use to list a unique value for V_CODE. Instead ONLY keyword is used to restrict the tables used in a query if the tables participate in table inheritance.
Option b is incorrect because it is a constraint that ensures that all values in a column are unique.
Option c is incorrect because DIFFERENT is not a keyword
Option d is correct because the query uses SELECT statement and DISTINCT is used to select only distinct or different values for V_CODE.
Answer:
Sustainable design - the key features for sustainable phones are: use of sustainable and recycled materials, the use of less energy and efficient charging, durability, and last but not least they should be easy and inexpensive to repair.