Discussion
Home ‣ Interview ‣ Technology Comments
- Question
What does a VLAN do?
Options- A. Breaks up broadcast domains in a layer 2 switch internetwork
- B. Provides multiple broadcast domains within a single collision domain
- C. Provides multiple collision domains on one switch port
- D. Acts as the fastest port to all servers
- Correct Answer
- Breaks up broadcast domains in a layer 2 switch internetwork
Explanationvirtual LAN (VLAN) is any broadcast domain that is partitioned and isolated in a computer network at the data link layer (OSI layer 2). LAN is the abbreviation for local area network and in this context, virtual refers to a physical object recreated and altered by additional logic.
VLANs work by applying tags to network packets and handling these tags in networking systems ? creating the appearance and functionality of network traffic that is physically on a single network but acts as if it is split between separate networks. In this way, VLANs can keep network applications separate despite being connected to the same physical network, and without requiring multiple sets of cabling and networking devices to be deployed.
- 1. What is Pipelining ? Discuss
- 2. What is usage of Sequence Number in Relaible Transmission? Discuss
- 3. What is Stop-and-Wait Protocol? Discuss
- 4. What is the Routing Information Protocol or RIP? Discuss
- 5. What is the DNS forwarder? Discuss
- 6. Which standard govern parallel communications?
Options- A. CAT 5
- B. RS232
- C. RS-232a
- D. IEEE 1284 Discuss
- 7. What is meant by a dedicated computer?
Options- A. Which is assigned one and only one task
- B. Which is meant for application software
- C. Which is used by one person only
- D. Which uses one kind of software Discuss
- 8. Which among the following are the capabilities of the Cursor?
Options- A. It reads every row one by one.
- B. It can be parameterised and hence are flexible
- C. It can be positioned to specific rows
- D. All the above Discuss
- 9. What is a DBA? Discuss
- 10. What are the advantages of operating a database in ARCHIVELOG mode over operating it in NO ARCHIVELOG mode? Discuss
Technology problems
Search Results
Correct Answer: In networking and in other areas, a task is often begun before the previous task has ended This is known as pipelining
Correct Answer: The protocol specifies that frames need to be numbered This is done by using sequence numbers A field is added to the data frame to hold the sequence number of that frame Since we want to minimize the frame size, the smallest range that provides unambiguous communication The sequence numbers can wrap around
Correct Answer: In Stop and wait protocol, sender sends one frame, waits until it receives confirmation from the receiver (okay to go ahead), and then sends the next frame
Correct Answer: RIP is a is an interior gateway protocol that was often used in interior networks and in some degree in internet networks It helps the router adapt to the modifications that are made in a network regarding connections Now it become less used since more efficient protocols were implemented like OSPF or IS-IS It is limited to a lower number of routers, a maximum of fifteen router
Correct Answer: DNS servers often must communicate with DNS servers outside of the local network A forwarder is an entry that is used when a DNS server receives DNS queries that it cannot resolve locally It then forwards those requests to external DNS servers for resolution
Correct Answer: IEEE 1284
Correct Answer: Which is assigned one and only one task
Correct Answer: All the above
Explanation:
All the above listed actions are the functions of cursor
Correct Answer: A DBA is a Database Administrator, and this is the most common job that you find a database specialist doing There are Development DBAs and Production DBAs - A Development DBA usually works closely with a team of developers and gets more involved in design decisions, giving advice on performance and writing good SQL That can be satisfying at a human level because you are part of a team and you share the satisfaction of the teams accomplishments - A Production DBA (on the other hand) is responsible for maintaining Databases within an organization, so it is a very difficult and demanding job He or she, often gets involved when all the design decisions have been made, and has simply to keep things up and running Therefore, of course, it is also a rewarding job, both financially and in terms of job satisfaction But it is a more "lonely" job than being a Development DBA
Correct Answer: Complete database recovery from disk failure is possible only in ARCHIVELOG mode Online database backup is possible only in ARCHIVELOG mode
Comments
There are no comments.More in Interview:
Programming
Copyright ©CuriousTab. All rights reserved.