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University

30 Qs

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Assessment

Quiz

Fun

University

Practice Problem

Easy

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Trang Dương Thùy

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30 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

1️⃣ What is the primary advantage of using Golang memdb?

A. Persistence on disk

B. Eliminates disk access for faster response

C. Automatic indexing in SQL

D. Built-in transactions across servers

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

2️⃣ What is a key limitation of memdb?

A. No transaction support

B. Vulnerability to data loss on server crash

C. Very slow for lookups

D. Requires external database driver

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

3️⃣ Which use case is not ideal for memdb?

A. Session store

B. Realtime analytics

C. High-traffic spike apps

D. Long-term archival storage

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

4️⃣ In memdb schema, StringFieldIndex{Field: "Email"} implies:

A. Sorting by email auto on disk

B. Unique index on Email for lookups

C. Non-unique index for range queries

D. Email will be stored as binary

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

5️⃣ What does txn.LowerBound("person", "age", 25) return?

A. Objects with age <= 25

B. Objects with age ≥ 25, ordered by age

C. First object with age exactly 25

D. None

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

6️⃣ Why does memdb use First(table, "id", value)?

A. To update existing records

B. To fetch the first matching object by index

C. To delete the first record

D. To perform full table scan

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

7️⃣ How do you insert or update an object in memdb?

A. txn.Update(...)

B. txn.Insert(...)

C. txn.Put(...)

D. txn.Save(...)

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