Palo Alto HA Interview Questions
Interviews for Top Jobs at Palo Alto Networks
Intern Interview
I applied online. I interviewed at Palo Alto Networks in Oct 2022
Interview
The interviewer didn’t ask many questions, and if any questions were asked at all, they sounded rehearsed and inauthentic. The interviewer also spoke too much, almost for the length of the entire interview, leaving no opportunity for me to speak and elaborate on my relevant work experiences. The interviewer had a grumpy face from the get go, making the entire interview experience bad from start.
- Tell me about your relevant work experiences.
Global Mobility Director Interview
I interviewed at Palo Alto Networks
Interview
Was emailed for phone screen request. Interview was scheduled virtually. Follow up email was sent to set up a time for second round interview. Sent my availability and was then ghosted. It’s been weeks and no response to my follow ups or denial or role.
- Was asked general work experience questions.
Senior Staff Engineer Interview
I interviewed at Palo Alto Networks (New Delhi)
Interview
First Round – ManagerialI was informed that, i can expect a little bit of technical as well.I was prepared with System design and my own projects.But guess what happened…Questions are like :How arrays store elements in memory?How memory is allocated and what’s the reason behind 0(1) complexity for indexed based search in arrays?What is a bit ? What values can it store?Grow up guys – i felt i should break out of the interview in the middle but still continued patiently.Waste of time.
- Questions are like :How arrays store elements in memory?How memory is allocated and what’s the reason behind 0(1) complexity for indexed based search in arrays?What is a bit ? What values can it store?
Mostly frequently Asked Palo Alto Interview Questions
Ans:The answer would be yes because here all the firewall traffic can be transmitted through the Palo Alto system, and later these are matches against a session. More importantly, each session should match against a firewall cybersecurity policy as well.
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Ans: Palo Alto Focus is one of the services available in Palo Alto to identify the critical attacks and take necessary action without using any additional resources. It is considered as the cloud-based threat intelligence service.
Ans: There are four deployment models available such as;
Ans: The following are the scenarios that explain the failure over triggering,
Failure occurs, if one or more monitored interface fail
Failure occurs, if one or more specified destinations cannot be pinged by the active firewall
If the active device does not respond to heartbeat polls or loss of three consecutive heartbeats over a period of 1000 millisecond this time failure occurs.
Ans: Open the Palo Alto web browser -> go to test security -> policy -> match from trust to untrust destination .
Ans: The application command center offers visibility to the traffic patterns and actionable information on threats in the firewall network logs.
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Ans: Autofocus in Palo Alto is the kind of threat intelligence service; this supports easier identification of critical attacks so that effective action can be taken without the need for the additional resources.
Ans: With the help of the Zone protection profile, you will get complete protection from attacks like floods, reconnaissance, and packet-based attacks. The flood attacks can be of type SYN, ICMP, and UDP, etc. The reconnaissance protections will help you to defend againss port and host sweeps. The packet protections help you to get the protection from the large ICMP and ICMP fragment attacks.
Ans: The following are the major protections used in Palo Alto;
Ans: The U-turn ANAT in Palo Alto is nothing but a logical path used in the networking system. In this NAT profile, the user should access the internal DMZ servers. To achieve this you should use the external IP address of the respective servers.
Ans:The following are the important features of the Palo Alto firewall;
Ans: WAF refers to the Web Application Firewall. The primary purpose of WAF is to monitor web applications to enhance the security and its features in web applications. It protects the web application by filtering the traffic between the internet and the application.
Ans:HA: HA refers to High Availability, a deployment model in Palo Alto.HA is used to prevent single point failure in a network. It includes two firewalls with a synchronized configuration. If one firewall crashes, then security features are applied via another firewall. This will help in continuing the business without any interruption.
HA1 and HA2 are two different ports in HA. HA is called a control link, while HA 2 is called a Datalink. These ports are used to maintain state information and synchronize the data.
Ans: The Palo Alto architecture follows single pass parallel processing.
Ans:There are many modes that can be used in Palo Alto configuration.
Ans:App-ID is nothing but the short form for the application identifications. This is one of the main components in Palo Alto. The major responsibilities of App-Id included are identifying the applications and transverse the firewalls independently.
Ans:The following are the few benefits of panorama in Palo Alto;
Related article : palo alto Networks Essentials
Ans:A virtual router is just a function of the Palo Alto; this is also the part of the Layer 3 routing layer. The virtual system is just an exclusive and logical function in Palo Alto. This is also an independent firewall; the traffic here is kept separate.
Ans: The Palo Alto firewall supports two types of media such as copper and fiber optic.
Ans: SCI is a layer 1 of the SFP+ interface. In an HA configuration, this connects any two PA -200 firewall series. This port can be used for both HA2 and HA3 network connections and the raw layer can be transmitted to the HSCI ports.
Ans:The global protect VPN provides a clientless SSL Virtual private network (VPN) and helps to access the application in the data center.
Ans: HA1 and HA2 in Palo Alto have dedicated HA ports. HA1 port is a control link whereas HA2 is just a data link. These links are primarily used to synchronize the data and also help to maintain the state information.
Ans:Application Incomplete can be interpreted as-either the three-way TCP handshake is not completed or completed, and there was no information to classify the process just after handshake.Where as Application override is being used to bypass the App-ID (Normal Application Identification) for unique traffic transmitted via a firewall.
Ans: There are two types of processing available such as;
Ans:There are two different options available on Palo Alto Firewall for forwarding the log messages which are listed below:
Ans: Single-pass parallel processing allows the system to operate on one packet. The following are important features of Single-pass parallel processing such as policy lookup, identifying applications, performing networking functions, decoding, and signature matching. The content in the Palo Alto firewall is scanned only once in the architecture.
Ans: ICMP is the protocol used to exchange heartbeat between HA.
Ans: The Palo Alto architecture is designed with separate data content and control planes to help parallel processing. The hardware elements in parallel processing support discrete and process groups to perform several complex functions.
Ans: U-Turn NAT refers to the logical path in a network. The users will be provided access to the DMZ server using the servers external IP address.U-Turn NAT allows clients to access the public web server on the internal network.
Ans:Endpoint security is something which protects the user’s devices like laptops, mobiles, PC using the designed tools and products. It is one of the world’s leading network’s security suites which helps in securing the user’s data and applications from the organizations. Depending on a network against various threats is not quite simple nowadays however, it can be attained by using best practices in both hardware and software.
Palo Alto Interview Questions for Freshers
In Palo Alto, several different deployment modes are observed. The company operates in different modes as per its benefits and suitability. Those include virtual wire mode, tap mode, layer two, and layer three deployment modes. The different deployment modes are leveraged to satisfy different security requirements.Â
Is the firewall at Palo alto stateful?
Yes, the firewall of Palo Alto is stateful. It means that the entire traffic passing through the firewall is matched against the session, and every session is matched against the security policy.Â
FAQ
What is Palo Alto firewall interview questions?
- In Palo Alto, identify the various deployment modes? …
- Is the firewall at Palo alto stateful? …
- In Palo Alto, what is the difference between virtual routers and virtual systems? …
- What is the purpose of Palo Alto Autofocus? …
- What are the different failover scenarios?
How many rounds of interviews does Palo Alto Networks have?
There were 4 rounds in my interview. The first round was Technical, followed by Technical round. The third round was Technical, followed by final Technical round. I applied via Referral and was interviewed in Jul 2022.
Why Palo Alto is a stateful firewall?
What is WildFire in Palo Alto?
