Answer:
Synchronous data transmission is a data transfer method in which a continuous stream of data signals is accompanied by timing signals (generated by an electronic clock) to ensure that the transmitter and the receiver are in step (synchronized) with one another. The data is sent in blocks (called frames or packets) spaced by fixed time intervals.
/etc/services on my CentOS machine goes up to 49000. Reserved ports are less than 1024.
Well known and reserved ports are two different things. Well known ports only need a registration with IANA. Reserved ports, on *nixes, requires root for a deamon to bind to the port.
Answer:
D. ReFS
Explanation:
File system is simply a management system for files that controls how and where data are stored, where they can be located and how data can be accessed. It deals with data storage and retrieval.
Examples of file system are NTFS, FAT(e.g FAT 16 and FAT 32), ReFS.
ReFS, which stands for Resilient File System, is designed primarily to enhance scalability by allowing for the storage of extremely large amounts of data and efficiently manage the availability of the data. It is called "resilient" because it ensures the integrity of data by offering resilience to data corruption. It does not support transaction, encryption, file based compression, page file and disk quotas, to mention a few.
Answer: URN(Uniform Resource Name) is the basically a subset of the Uniform Resource identifier(URL). It uses "urn"scheme for the working an implementation. Uniform resource name functions by identifying components uniquely through their name.
The most common example of URN is ISBN (International Standard Book Number)number which helps in the unique searching and identification of book.
I would say none of the above as A, B, and C do not seem like sensible answers.
