PK0-005 Basics of IT Infrastructure and IT Project Management — 25 Questions

Question 1

A project manager is deploying a new web application to a cloud environment. The application requires high availability and automatic scaling based on traffic. Which IT infrastructure component should the project manager use to meet these requirements?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

Load balancer. A load balancer distributes incoming traffic across multiple instances of the web application, enabling high availability by rerouting traffic if an instance fails, and automatic scaling by integrating with cloud auto-scaling groups to add or remove instances based on demand. This directly meets the requirements for both high availability and automatic scaling.

Answer

Firewall

Answer

DNS server

Answer

VPN concentrator

Question 2

During a database migration project, the team encounters an error when trying to connect to the new database server from the application server. The network team confirms that the ports are open and the firewall rules are correct. The database team reports that the database service is running and listening on the expected port. Which of the following is the MOST likely cause of the connectivity issue?

Accepted Answer

Missing route on the database server's routing table. The most likely cause is a missing route on the database server's routing table. Even with correct firewall rules and an active database service, the database server may not have a return route to the application server's subnet, causing packets to be dropped. This is a common Layer 3 issue where the destination server can receive traffic but cannot reply because it lacks a route back to the source.

Answer

Misconfigured DNS server

Answer

Incorrect subnet mask on the application server

Answer

Expired SSL certificate on the database server

Question 3

Which TWO of the following are key considerations when designing an IT infrastructure for a new data center?

Accepted Answer

Redundant power supplies and UPS systems. Redundant power supplies and UPS systems are critical for ensuring high availability and fault tolerance in a data center. They protect against power outages, fluctuations, and hardware failures, maintaining uptime for critical IT services. This aligns with industry best practices for Tier II and above data center designs.

Answer

Open floor plan with no raised flooring

Answer

Use of low-cost, consumer-grade hardware

Answer

Single point of failure for critical systems

Question 4

A project manager is planning the deployment of a new web application. The IT team has identified the following requirements: the application must be accessible 24/7, handle traffic spikes, and maintain session persistence. Which TWO infrastructure components should the project manager include in the design to meet these requirements?

Accepted Answer

An auto-scaling group of web servers. Option A, an auto-scaling group of web servers, is correct because it automatically adds or removes instances in response to traffic spikes, ensuring the application remains available 24/7 without manual intervention. Option E, a load balancer with session affinity, is correct because it distributes incoming requests across multiple web servers while using session affinity (sticky sessions) to route each user's requests to the same backend instance, thereby maintaining session persistence. Option B, a CDN, improves latency for static content but does not provide compute scaling or session persistence for dynamic application sessions. Option C, a single web server with a large instance type, is a single point of failure and cannot handle traffic spikes or guarantee 24/7 availability. Option D, a database cluster with replication, supports data durability and read scaling but does not address web-tier traffic spikes or session persistence.

Answer

A content delivery network (CDN)

Answer

A single web server with a large instance type

Answer

A database cluster with replication

Question 5

A project manager is working on a project where a new team member is not receiving project updates. The team member reports that they can access the project portal but not the project emails. Based on the exhibit, what is the most likely cause?

Accepted Answer

The team member is assigned to a misconfigured communication group. The exhibit shows that the team member is assigned to the 'Development' communication group, while project emails are sent only to the 'Management' group. Communication groups segment project communication, so the team member cannot receive updates even though they can access the portal. The team member can access the portal because the portal is available to all groups, but email distribution is group-specific.

Answer

The team member has missing email configuration

Answer

The team member is not listed in the project directory

Answer

The email server firewall is blocking messages

Question 6

Arrange the steps for performing procurement management.

Accepted Answer

Plan, Conduct, Select, Administer, Close. The correct sequence for procurement management is Plan, Conduct, Select, Administer, and Close. This order ensures that procurement is well-defined before market engagement, vendors are evaluated after solicitation, contracts are managed after selection, and all activities are formally closed.

Answer

Conduct, Plan, Select, Administer, Close

Answer

Plan, Select, Conduct, Administer, Close

Answer

Plan, Conduct, Administer, Select, Close

Question 7

Match each project management knowledge area to its description.

Accepted Answer

Scope Management: The processes required to ensure the project includes all the work required, and only the work required, to complete the project successfully.. The correct matches are: Scope Management with its definition about including all work, Time Management with timely completion, and Cost Management with budgeting and cost control. Common confusions include swapping definitions between these knowledge areas, especially because they are closely related.

Answer

Scope Management: The processes required to manage the timely completion of the project.

Answer

Time Management: The processes involved in planning, estimating, budgeting, financing, funding, managing, and controlling costs so that the project can be completed within the approved budget.

Answer

Cost Management: The processes and activities of the performing organization that determine quality policies, objectives, and responsibilities so that the project will satisfy the needs for which it was undertaken.

Question 8

A company is implementing a hybrid cloud solution to meet fluctuating demand. The project budget is fixed, and the timeline is aggressive. Which project management approach is most appropriate to manage scope changes while controlling costs?

Accepted Answer

Agile methodology. Agile methodology is iterative and embraces changing requirements through short sprints and continuous feedback, making it well-suited for a hybrid cloud project with fluctuating demand, fixed budget, and aggressive timeline. Agile's incremental delivery and backlog prioritization allow scope to be adjusted while keeping costs and schedule under control.

Answer

Waterfall methodology

Answer

Lean methodology

Answer

PRINCE2 methodology

Question 9

A network engineer configures a switch port as shown. After implementation, the connected server is experiencing intermittent network drops. Which configuration change should the project team recommend to resolve the issue?

Accepted Answer

Remove the portfast configuration from the interface. The intermittent network drops are caused by portfast being enabled on a trunk port connected to a server. Portfast immediately transitions the port to the forwarding state, bypassing the normal spanning-tree listening and learning states. If a loop is introduced (e.g., via a misconfigured NIC team or a downstream switch), the switch will not detect it in time, leading to a temporary bridging loop and packet loss. Removing portfast forces the port to go through the full spanning-tree convergence process, preventing loops and stabilizing the connection.

Answer

Add additional VLANs to the allowed list

Answer

Disable trunk encapsulation on the interface

Answer

Change the interface mode to access

Question 10

A cloud engineer created the access control policy shown. The project requires that only the development team (IP range 10.0.0.0/16) can upload backup files to the backup storage location 'project-backup'. However, the policy is not working as expected. What is the most likely cause?

Accepted Answer

The policy is missing a Principal element. The policy is missing a Principal element, which is required for a resource-based access control policy to specify who the policy applies to. Without a Principal, the policy is invalid and cannot enforce the intended restriction that only the development team (IP range 10.0.0.0/16) can upload backup files to the backup storage location 'project-backup'.

Answer

The Action field is misspelled

Answer

The resource identifier is incorrect

Answer

The Effect should be 'Deny'

Question 11

A project team is deploying a new application, and the error log shows repeated connection refused errors. The database server is on a separate subnet. What is the most likely cause of this issue?

Accepted Answer

The database port is blocked by a firewall. The error 'connection refused' indicates that the application's TCP SYN packet to the database server was met with a TCP RST or no response, which typically occurs when a firewall drops or rejects the traffic. Since the database server is on a separate subnet, a network-layer access control list (ACL) or firewall rule is the most common cause of blocking the specific database port (e.g., 3306 for MySQL, 5432 for PostgreSQL, 1433 for SQL Server). This prevents the three-way handshake from completing, resulting in the connection refused error.

Answer

The database schema is missing a required table

Answer

The database credentials are incorrect

Answer

The application server has insufficient memory

Question 12

Which TWO of the following are common causes of project delays in IT infrastructure projects? (Choose two.)

Accepted Answer

Unforeseen dependencies between tasks. Option B is correct because unforeseen dependencies between tasks are a classic schedule risk: when a task that was assumed independent turns out to require another task's output or a shared resource, the critical path shifts and the project slips. Option D is correct because long lead times for hardware procurement directly extend the schedule; servers, switches, storage arrays, and especially custom or constrained components (e.g., GPUs or specific optics) can take weeks or months to arrive, and installation, cabling, and configuration cannot begin until they do. Option A is not a cause of delay — successful integration testing is a positive milestone that validates interoperability and typically keeps the schedule on track. Option C is incorrect because overestimating resource capacity (assuming more availability or throughput than actually exists) is a planning error that can cause delays, but the option as written describes an overestimate that would generally not delay work; in any case it is not marked correct. Option E is not a common root cause of delay; frequent status meetings may consume time, but they are a communication overhead rather than a structural schedule risk like dependencies or procurement lead times.

Answer

Successful integration testing

Answer

Overestimating resource capacity

Answer

Frequent status meetings

Question 13

A project to consolidate multiple physical servers into a private cloud. What is the primary benefit of using server virtualization?

Accepted Answer

Reduced power consumption. Server virtualization allows multiple virtual machines to run on a single physical host, significantly reducing the number of physical servers required. This consolidation directly lowers power consumption because fewer physical machines need electricity for operation and cooling. While other benefits exist, reduced power consumption is the primary advantage in a consolidation project.

Answer

Increased physical security

Answer

Simplified licensing

Answer

Improved network speed

Question 14

While upgrading storage, the project team discovers that the SAN switch is saturated. What immediate step should the project manager take?

Accepted Answer

Update risk register and assess impact. When a SAN switch is saturated, the immediate priority is to document the risk and assess its impact on the project timeline, budget, and deliverables. Updating the risk register ensures the issue is formally tracked and that mitigation or contingency plans can be developed before taking any technical action. This aligns with the project manager's role in risk management, not direct technical troubleshooting.

Answer

Add additional storage

Answer

Increase bandwidth via link aggregation

Answer

Escalate to sponsor

Question 15

A project involves installing new firewalls across multiple sites. The project manager notices the schedule is slipping due to site-specific electrical requirements that were not initially identified. What is the best course of action?

Accepted Answer

Perform root cause analysis. The schedule is slipping due to unidentified site-specific electrical requirements, which is a root cause of the delay. Performing a root cause analysis (RCA) allows the project manager to understand why these requirements were missed and to prevent recurrence, rather than simply applying a schedule compression technique that does not address the underlying issue. In IT infrastructure projects, electrical requirements are often tied to power specifications for firewalls (e.g., voltage, amperage, or UPS compatibility), and failing to identify them early indicates a gap in requirements gathering.

Answer

Crash the schedule by adding resources

Answer

Submit a change request to extend schedule

Answer

Fast track the remaining tasks

Question 16

A team is implementing a disaster recovery plan that includes replication to a secondary data center. Which metric should the project manager prioritize defining in the DR plan?

Accepted Answer

Recovery time objective (RTO). The Recovery Time Objective (RTO) defines the maximum acceptable downtime after a disaster, directly dictating the speed of failover to the secondary data center. In a replication-based DR plan, the RTO determines whether synchronous or asynchronous replication is used and how quickly systems must be brought online. The project manager must prioritize this metric to align recovery speed with business continuity requirements.

Answer

Mean time between failures (MTBF)

Answer

Recovery point objective (RPO)

Answer

Mean time to repair (MTTR)

Question 17

During a server migration project, the team discovers that the new hardware requires a specific firmware version not currently installed. The project schedule is tight. What is the best course of action?

Accepted Answer

Update firmware immediately and adjust schedule. The firmware is a prerequisite for the new hardware to function correctly; proceeding without it risks incompatibility, instability, or hardware failure. Updating the firmware immediately and adjusting the schedule is the only viable path that ensures the migration is technically sound. The project schedule is tight, but the firmware update is a necessary step that cannot be skipped or deferred without jeopardizing the migration's success.

Answer

Use alternative hardware that supports current firmware

Answer

Proceed with migration and apply firmware post-migration

Answer

Defer the project until firmware is available

Question 18

A data center upgrade project requires redundancy for critical systems. Which three components should be redundant? (Choose three.)

Accepted Answer

Power supply. Option C (Power supply) is correct because redundant PSUs allow a server to keep running if one power supply or its feed fails, typically paired with separate power circuits. Option D (UPS) is correct because an uninterruptible power supply provides battery-backed power during outages and conditions the power, protecting critical systems until generators start or shutdown completes. Option E (Network switch) is correct because redundant switches (often in a stacked or MLAG/VPC configuration) eliminate a single point of failure in the data path and maintain connectivity if one switch fails. Option A (RAID controller) is not marked correct because RAID redundancy is about disk fault tolerance, and a single controller can still be a single point of failure unless a second controller is specifically added. Option B (Server chassis) is not marked correct because a chassis is a physical enclosure, not a component typically duplicated for redundancy within a single server.

Answer

RAID controller

Answer

Server chassis

Question 19

A project involves upgrading the network core switches to support higher throughput and new routing protocols. The project manager schedules a cutover during a weekend maintenance window. On Friday evening, the team discovers that the new switches do not have the correct software license for the advanced routing protocols required per the architecture. The current old switches are still functional. The project manager must decide the best course of action.

Accepted Answer

Postpone the cutover and request expedited delivery of the license.. The new switches lack the required software license for the advanced routing protocols (e.g., BGP, OSPF, or EIGRP) specified in the architecture. Attempting the cutover without the license would violate the design requirements and could lead to routing failures or security gaps. Postponing the cutover and requesting expedited delivery ensures the network upgrade is performed correctly without compromising functionality or stability.

Answer

Use open-source routing software as a temporary workaround on the new switches.

Answer

Proceed with cutover using basic routing and add the license later.

Answer

Fall back to the old switches and reschedule the cutover for a later date.

Question 20

A project manager is planning the network cutover for a new branch office. The project charter requires that the branch remain reachable even if its primary WAN circuit fails, and that the failover be validated before go-live. Which TWO activities should the project manager include in the cutover plan? (Choose two.)

Accepted Answer

Configure a floating static route with a higher administrative distance on the backup circuit.. Meeting the redundancy requirement takes both a mechanism and proof that it works: a floating static route supplies the backup path, and a scheduled failover test with documented results supplies the validation the charter demands. DHCP lease tuning, jumbo frames, and firewall replacement address addressing, performance, or security concerns, none of which keep the branch reachable when the primary WAN circuit fails.

Answer

Enable jumbo frames on all branch access switches to reduce failover latency.

Answer

Increase the DHCP lease time to 30 days so clients retain addresses across the outage.

Answer

Replace the branch firewall with a next-generation model that supports deep packet inspection.