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MongoDB C100DBA certification exam is designed for individuals who want to demonstrate their expertise in managing and administering MongoDB databases. As a highly recognized certification in the database industry, passing the C100DBA Exam validates the skills and knowledge required to perform essential tasks such as installing, configuring, and maintaining MongoDB deployments.
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Another way to pass the exam is by reviewing the MongoDB C100DBA Study Guide and practicing exams online after completing each chapter. I would also recommend that you start from the beginning of the study guide and go from chapter to chapter. You will find it easier to understand concepts as you progress through each chapter. For those who are not very familiar with MongoDB, I would recommend that you spend time taking multiple-choice exams online for multiple reasons. MongoDB C100DBA Dumps are the best way because you will see how people are attempting to answer the questions. Also, by doing this, you will be able to familiarize yourself with test structure and question types. This will help you much more when it is your time to take the exam for real. The first reason is that they'll help you become more familiarized with how these types of questions are asked and answered and will help prepare your mind before attempting the actual exam. Real exams may seem stressful, and you may not do as well on the actual exam, which is why it is highly advised to take multiple-choice exams online. Another good way to pass the exam is by paying attention during the lecture and taking notes. This will help you retain information and also make studying easier during your preparation phase.
NEW QUESTION # 143
Mongodb does provide high availability via which option?
Answer: C
NEW QUESTION # 144
You perform the following operation in the shell: db.foo.insert( { } ); What gets inserted?
Answer: E
NEW QUESTION # 145
What is the defau size of a GridFS chunk?
Answer: D
NEW QUESTION # 146
What command set removes node-1.cluster1.mycompany.local:27017 and node-2.cluster1.mycompany.local:
27017 from the replica set, then adds node-1.cluster1.mycompany.local:27017 back to the replica set?
Answer: C
Explanation:
The supported mongosh helpers for replica-set membership changes are rs.remove() and rs.add(). rs.remove (hostname) removes the member whose host string matches the supplied host:port, while rs.add() adds a new member using either a host string or a member configuration document that includes a host field. Option C uses those documented methods in the required sequence: remove node 1, remove node 2, then add node 1 back. The names rs.removeNode() and rs.addNode() shown in the other options are not standard MongoDB replica-set helper methods. Membership changes must be performed carefully because modifying voting or data-bearing membership can affect majority calculations, elections, and availability. Administrators normally execute membership changes while connected to the current primary, allow configuration propagation, and verify replica-set health afterward with rs.status() or related diagnostics. If a removed data-bearing node is later re-added, it may need to synchronize depending on how far its data has diverged from the current replica- set history. Among the choices, option C is the only valid command sequence.
Study Guide reference/topic:Cluster Reliability and Data Resilience - replica-set membership, rs.remove(), rs.
add(), and topology changes.
NEW QUESTION # 147
What does the following $slice query return using the following command? db.posts.find( {}, { comments: { $slice: [ -10, 5 ] } } )
Answer: D
NEW QUESTION # 148
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