Question:- Explain how you can reduce churn in ISR? When does broker leave the ISR?
Answer:- ISR is a set of message replicas that are completely synced up with the leaders, in other word ISR has all messages that are committed. ISR should always include all replicas until there is a real failure. A replica will be dropped out of ISR if it deviates from the leader.
Question:- Why replication is required in Kafka?
Answer:- Replication of message in Kafka ensures that any published message does not lose and can be consumed in case of machine error, program error or more common software upgrades.
Question:- What does it indicate if replica stays out of ISR for a long time?
Answer:- If a replica remains out of ISR for an extended time, it indicates that the follower is unable to fetch data as fast as data accumulated at the leader.
Question:- Mention what happens if the preferred replica is not in the ISR?
Answer:- If the preferred replica is not in the ISR, the controller will fail to move leadership to the preferred replica.
Question:- Is it possible to get the message offset after producing?
Answer:- You cannot do that from a class that behaves as a producer like in most queue systems, its role is to fire and forget the messages. The broker will do the rest of the work like appropriate metadata handling with id’s, offsets, etc. As a consumer of the message, you can get the offset from a Kafka broker. If you gaze in the SimpleConsumer class, you will notice it fetches MultiFetchResponse objects that include offsets as a list. In addition to that, when you iterate the Kafka Message, you will have MessageAndOffset objects that include both, the offset and the message sent.
Question:- Explain what is Windows Server?
Answer:- Window server is a series of server operating system developed by Microsoft Corporation.
Question:- Explain in windows DNS server what is Primary, Secondary and Stub zone?
Answer:- In windows DNS server, • Primary Zone: In this, the file is saved as normal text file with filename (.dns). • Secondary Zone: It maintains a read-only copy of zone database on another DNS server. Also, it acts as a back-up server to the primary server by providing fault tolerance and load balancing • Stub Zone: It consists of a copy of name server and SOA records which is used for reducing the DNS search orders.
Question:- Explain what does IntelliMirror do?
Answer:- IntelliMirror helps to reconcile desktop settings, applications and stored files for users especially for those users who move between workstations or those who works offline
Question:- In the case when MSI file is not available, how you can install an app?
Answer:- To add the application using the Software Installer.ZAP text file can be used rather than the windows installer
Question:- Explain how you can set up remote installation procedure without giving access to user?
Answer:- To do that, you have to go to, gponameà User Configuration à Windows Settings à Remote Installation Services à Choice Options
Question:- What does it mean by “tattooing” the Registry ?
Answer:- “ Tattooing” the registry means user can modify and view user preference that are not stored in the maintained portions of the Registry. Even if the group policy is changed or removed, the user preference will still persist in the registry.
Question:- “ Tattooing” the registry means user can modify and view user preference that are not stored in the maintained portions of the Registry. Even if the group policy is changed or removed, the user preference will still persist in the registry.
Answer:- The types of queries DNS does are Iterative Query Recursive Query
Question:- Explain what is the primary function of the domain controller?
Answer:- Primary function of the domain controller is to validate users to the networks, it also provide a catalog of Active Directory Objects.
Question:- What information is required when TCP/IP is configured on Window Server?
Answer:- To configure a TCP/PI client for an IPv4 client, you have to provide the IP address and the subnet mask.