Skip to content
SkilBrill Training Institute Logo
  • Home
  • Courses
  • About
  • Contact
  • Blog
    • Freshers

Home - Lessons - MongoDB Associate Certification Training (Developer and DBA) - M7 — Sharding, Atlas and Search - Chunk splitting, the balancer and how a range skew slows the whole set

MongoDB Associate Certification Training (Developer and DBA) Chunk splitting, the balancer and how a range skew slows the whole set
MongoDB Associate Certification Training (Developer and DBA)
0% Completed
M1 — The Document Model and BSON Types
BSON types beyond JSON: ObjectId, Decimal128, date and binary values
Reading
Embedded against referenced documents and the 16 MB document ceiling
Reading
Collection design: what happens when one document grows without bound
Reading
Schema validation with $jsonSchema and how strictness affects the write path
Reading
Working from mongosh and from the Python and Node.js drivers
Reading
Choosing _id values that keep write locality and index size sane
Reading
M2 — CRUD, Filters and the Query Language
find and findOne with filters, projection, sort and limit pushed to the server
Reading
Comparison, logical and element operators on nested fields
Reading
Array operators including $elemMatch, $all and $size inside a filter
Reading
Update operators: $set, $inc, $push, $pull and the pipeline form of update
Reading
Delete safety: narrowing the filter before you run a destructive write
Reading
Reading explain("executionStats") and judging the winning plan
Reading
M3 — Aggregation Pipelines and Data Shaping
Core stages in order: $match, $project, $group, $unwind and $sort
Reading
$lookup against a second collection and what a large join costs
Reading
$facet, $bucket and $sample for multi-faceted report blocks in one pass
Reading
Window functions with $setWindowFields for running totals and ranks
Reading
Writing results back with $merge and $out and the difference between them
Reading
Optimising a pipeline by matching early, trimming $project and using indexes
Reading
M4 — Indexing and Query Performance
Single field, compound and multikey indexes and the prefix rule
Reading
Text, wildcard and hashed indexes and the query each one answers
Reading
Partial and sparse indexes over a subset of a large collection
Reading
Covered queries, index bounds and the hidden sort stage in the plan
Reading
Index hints, index intersection and overriding a bad planner choice
Reading
Index upkeep: TTL indexes, background builds and the storage they cost
Reading
M5 — Write Concern, Read Preference and Transactions
Write concern levels and the guarantee each one gives an acknowledged write
Reading
Read preference modes: primary, secondary, nearest and preference tags
Reading
Retryable writes and reads and the conditions that stop them retrying
Reading
Multi-document transactions and why a large one is expensive
Reading
Schema choices that keep writes local and documents from growing forever
Reading
Sizing the oplog window against replica set recovery time
Reading
M6 — Replication, the Oplog and Backup
Replica set members, election terms and the vote that picks a primary
Reading
Reading the oplog and the write concern that keeps it durable
Reading
Backing up with mongodump and mongorestore and the logical dump trade-off
Reading
Resyncing from the oplog, hidden members and delayed replication
Reading
Watching lag, oplog rollover and disk pressure across set members
Reading
Testing a point-in-time restore before the day you need it
Reading
M7 — Sharding, Atlas and Search
Shard key choice: cardinality, frequency and write distribution
Reading
Chunk splitting, the balancer and how a range skew slows the whole set
Reading
Config servers, mongos routers and the path of a query to its shard
Reading
Scatter-gather cost and when targeted routing beats a broadcast
Reading
Atlas tiers, dedicated clusters, serverless and private network peering
Reading
Atlas Search: building the index, the pipeline stage and the analyser
Reading
M8 — Capstone: Model, Aggregate and Operate a MongoDB Service
Design a document model for an orders and events domain and defend it
Reading
Build the collections, validators and indexes for the stated query patterns
Reading
Write the aggregation pipeline that produces the monthly revenue mart
Reading
Stand up a replica set, then shard the collection with a chosen shard key
Reading
Restore the data set to a new cluster and measure the recovery point
Reading
Write the exam revision plan and answer a full Associate practice paper
Reading
Announcements Course Info
PreviousNext

Global Trusted Software Training Partner Since 2022

SkilBrill Training Institute delivers industry-focused technology education that bridges the gap between academic learning and real-world demands. Our structured programs combine foundational theory with practical application, ensuring every graduate is confident and job-ready from day one.

Learn More About Us

© 2026 SkilBrill Training Institute. All Rights Reserved. Privacy Policy Terms Refunds Outcomes

📞 Enroll Now

Start Your Journey

Fill in your details and our team will get back to you within 24 hours

Please enable JavaScript in your browser to complete this form.