Windows and Active Directory

  • How do you qualify your Active Directory administration experience (Domain migrations? GPO? Management of the structure, of the users?)
  • What is the name of the tool used to create the accounts in Active Directory?
  • What is the difference between a security group and a distribution group?
  • And between a universal and global group? What is referred to when speaking about the abbreviation “AGDLP” or “AGUDLP”?
  • A Windows 2008 R2 server restarts in Infinite loop. What is your approach to diagnosing the problem?


  • What is the latest major Linux project that you have completed?
  • What is the Linux command to display free/used memory on Linux? Does free memory really exist on Linux?
  • What happens if we do “TAB TAB” at the Linux prompt?
  • What happens if we add “& disown” After a Linux command?
  • I lost my root password, what can I do?
  • How to do a search in VI?
  • What is LVM for Linux?


  • How do you qualify your experience in configuring Firewall (“Firewall”)? (What brands/models?)
  • Generally, how do you secure a Windows server? What is C2 certification? (Trusted Computer System Evaluation Criteria / Orange book)
  • You are being asked to help secure a corporate subnet. The goal is to isolate some computers from others in order to maintain the confidentiality of artistic materials. How do you think we should proceed?
  • In the previous scenario, what role can a network switch of Layer 3 type provide? Contrast against a layer 2 switch
  • What is a tunnel and how to bypass an HTTP proxy?
  • What is an IPS system? What is the difference with an IDS system?
  • What is the purpose of a SIEM system?
  • How does a layer 7 firewall differ from a conventional firewall?


  • How do you qualify your network administration skill?
    • (Your specialty? Experience with ACL, Routage, NAT, VPN, VLAN?)
  • Did you have to manage DNS regularly?
  • Do you have extensive experience with site to site VPN techs?
    • (if yes, in which contexts and with which technologies)
  • What is 802.1q?
  • How many addresses can be used in a network with a mask 16 bits?
  • Tell us about the following protocols: LDAP, IMAP, MAPI, SMTP, RADIUS, BGP
  • What technologies or methods are used to reduce (or eliminate) « broadcast storms »?
  • What ways can we increase bandwidth Network of a server? (Detail technologies and concepts)
  • Name some interesting customizable technologies found on a “manageable switch”
  • What is the purpose of address
  • Tell us about the content of a DNS table and how it is used
  • How could you extend a network between two sites to share a Network Level 2 DCI? (MPLS, VPLS, A-VPLS, Cisco OTV, HP EVI, EVPN)
  • Other than the MTU, what Other TCP settings could we modify to have smaller packets? (« Maximum Segment Size »)


  • What types of “port groups” exist on ESXi?
  • What are the types of “load Balancing” available on “vSwitches”? (“Originating port ID”, “MAC hash”, “IP hash”)
  • What is the purpose of Path selection Policies for storage on VMWare?
  • What is the difference between a “.vmdk” and “.vmdk-flat” file?
  • What is a “vApp”?
  • What is VMWare DRS?
  • How does a “snapshot” work on VMWare? Is it different on a VVOL?


  • What are the RAID levels you know?
  • What are the differences between Fibre Channel and ISCSI?
  • What is a “LUN”?
  • What are the differences between DAS and SAN?

Office 365 / Office Servers

  • What is the difference between E1 and E3 plans?
  • What is the use of the permission “Send As”? How does it differ from “Send on Behalf”?
  • What are the different ways to integrate authentication on Office 365 with Active Directory? (Synchro or Federation)
  • What is the attribute that allows you to manage a user's destination email address? How does it differ from “ProxyAddresses”?
  • What is a “Document Library” In SharePoint?
  • What is the taxonomy in SharePoint for?
  • What is a “Master Page” in SharePoint?
  • What is a Package Solution?
  • What is a SIP trunk?
    • What are the important roles in Skype for Business server? (mediation, edge, director, persistent chat)


  • Could you write a PowerShell script to add a value to the extended fields in Active Directory from a CSV file?
  • What is your favorite development environment (OS, editor, tools, etc.)?
  • What is abstraction?
  • How would you do a “ping” on a machine with PowerShell?
  • If I run the command “Get-Service-Name “bits” | Start-Process”, what will happen?
  • What is the difference in PowerShell between a normal function and an advanced function?
  • What is usually the first line in a shell script on Linux?
  • What are “regular expressions”?
  • What is the use of the caret (^) in “regex”?


  • Have you ever been responsible for backups in your work experience?
    • (If so, briefly explain your backup and restore methodologies, as well as the associated tools used?)
  • Name the different conventional backup techniques (complete, incremental, differential)
  • What is the most efficient method at the disk space level in conventional methods, and why?
  • What is the disadvantage of the incremental technique?


  • What is normalization?
  • What is the difference between a relational and object-oriented database?
  • How would you migrate a MySQL database to Microsoft SQL Server?
  • What are “INSERT, UPDATE, and DROP” requests used for?

Source Control

  • What is the main difference between conventional source control systems and the distributed model?
  • Can you name conventional source control systems? (SVN, CVS, VSS, VSTS, Perforce)
  • What is the most popular distributed source control system right now? (Git)
  • What is a branch in a source control system?

Cloud Computing

  • Can you name the three layers of the cloud model? (“IaaS”, “PaaS” and “SaaS”)
  • What is the EC2 service for at Amazon?
  • Name the container technologies you know
  • What is the difference between a virtual machine and a “container”?
  • How can you see the console of a virtual machine on Amazon AWS? (“Screenshot” on Linux, “event log” only on Windows)
  • divers/questions.txt
  • Dernière modification: 2020/06/19 20:55
  • (modification externe)