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Question 41 of 1,733

Design of SAP Workloads on AWS →hardMultiple ChoiceObjective-mapped

Using Network Load Balancer for SAP HANA Virtual IP

This PAS-C01 practice question tests your understanding of design of sap workloads on aws. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.

A company runs SAP S/4HANA on AWS. The system is deployed in a cluster across two Availability Zones using Pacemaker for high availability. The primary SAP HANA node fails, and the failover to the secondary node is successful. However, after failover, the application servers cannot connect to the database because the database IP address changed. The application servers are configured to use the IP address of the primary node. The company needs a solution that allows the application servers to connect to the active database node without reconfiguration after failover. Which solution should the company implement?

Clue words in this question

Noticing these words before you look at the options changes how you read each choice.

Clue: "primary"
Why it matters: Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.

A
Use Amazon Route 53 DNS with a health check to point to the active node's IP
Why wrong: Using Route 53 DNS with a health check can update DNS records, but due to DNS caching and TTL, application servers may continue using the old IP for some time, causing connection failures. This is not seamless.
B
Associate an Elastic IP address to the active node using a script during failover
Why wrong: Associating an Elastic IP to the active node via script can work but adds complexity and potential delays. Elastic IP reassignment is not instantaneous and if the instance fails, the IP may not be released immediately. Not the best solution.
C
Configure a CNAME record in Route 53 that points to the primary node's DNS name
Why wrong: A CNAME record that points to the primary node's DNS name does not help because after failover, the primary node's DNS name would still resolve to the failed node's IP unless updated dynamically, which has TTL issues.
D
Deploy an internal Network Load Balancer (NLB) with a static IP and target the HANA nodes
An internal NLB with a static IP provides a fixed endpoint. The NLB health checks and forwards traffic to the healthy HANA node, ensuring application servers can always connect to the active database without any configuration changes.

Full breakdown with real-world context →

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

Deploy an internal Network Load Balancer (NLB) with a static IP and target the HANA nodes

Option D is correct because an internal Network Load Balancer (NLB) with a static IP provides a stable endpoint for application servers. The NLB forwards traffic to the active HANA node, so no reconfiguration is needed after failover. Option A is incorrect because using Route 53 DNS with health checks introduces DNS caching and TTL delays, causing application servers to use stale IPs after failover. Option B is incorrect because associating an Elastic IP via script is not seamless and may require manual intervention or scripting, and Elastic IP reassignment can have delays. Option C is incorrect because a CNAME record still points to a DNS name with TTL delays and does not automatically update to the active node's IP; it also would require the primary node's DNS name to be updated.

Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✗
Use Amazon Route 53 DNS with a health check to point to the active node's IP
Why it's wrong here
Using Route 53 DNS with a health check can update DNS records, but due to DNS caching and TTL, application servers may continue using the old IP for some time, causing connection failures. This is not seamless.
✗
Associate an Elastic IP address to the active node using a script during failover
Why it's wrong here
Associating an Elastic IP to the active node via script can work but adds complexity and potential delays. Elastic IP reassignment is not instantaneous and if the instance fails, the IP may not be released immediately. Not the best solution.
✗
Configure a CNAME record in Route 53 that points to the primary node's DNS name
Why it's wrong here
A CNAME record that points to the primary node's DNS name does not help because after failover, the primary node's DNS name would still resolve to the failed node's IP unless updated dynamically, which has TTL issues.
✓
Deploy an internal Network Load Balancer (NLB) with a static IP and target the HANA nodes
Why this is correct
An internal NLB with a static IP provides a fixed endpoint. The NLB health checks and forwards traffic to the healthy HANA node, ensuring application servers can always connect to the active database without any configuration changes.
Clue confirmation
The clue word "primary" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.

Common exam traps

Common exam trap: answer the scenario, not the keyword

Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.

Detailed technical explanation

How to think about this question

This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.

KKey Concepts to Remember

Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.

TExam Day Tips

Underline the problem statement mentally.
Watch for words such as best, first, most likely and least administrative effort.
Review why wrong options are wrong, not only why the correct option is correct.

Key takeaway

Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Real-world example

How this comes up in practice

A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.

Visual reference

Quick reference

Common DNS Record Types

Record	Purpose	Example
A	IPv4 address mapping	example.com → 93.184.216.34
AAAA	IPv6 address mapping	example.com → 2606:2800::1
CNAME	Alias to another hostname	www → example.com
MX	Mail server for domain	example.com → mail.example.com (priority 10)
TXT	Text data (SPF, DKIM, verification)	v=spf1 include:_spf.example.com ~all
NS	Authoritative name servers	example.com NS ns1.example.com
PTR	Reverse DNS (IP → hostname)	34.216.184.93.in-addr.arpa → example.com
SOA	Zone authority record	Primary NS, admin email, serial, TTL defaults

What to study next

Got this wrong? Here's your next step.

Identify which PAS-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.

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FAQ

Questions learners often ask

What does this PAS-C01 question test?

Design of SAP Workloads on AWS — This question tests Design of SAP Workloads on AWS — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Deploy an internal Network Load Balancer (NLB) with a static IP and target the HANA nodes — Option D is correct because an internal Network Load Balancer (NLB) with a static IP provides a stable endpoint for application servers. The NLB forwards traffic to the active HANA node, so no reconfiguration is needed after failover. Option A is incorrect because using Route 53 DNS with health checks introduces DNS caching and TTL delays, causing application servers to use stale IPs after failover. Option B is incorrect because associating an Elastic IP via script is not seamless and may require manual intervention or scripting, and Elastic IP reassignment can have delays. Option C is incorrect because a CNAME record still points to a DNS name with TTL delays and does not automatically update to the active node's IP; it also would require the primary node's DNS name to be updated.

What should I do if I get this PAS-C01 question wrong?

Are there clue words in this question I should notice?

Yes — watch for: "primary". Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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