CNAB PRACTICE EXAM QUESTIONS AND
ANSWERS SURE A+
✔✔tasklist /m - ✔✔lists all tasks with DLL modules loaded that match the given pattern.
✔✔tasklist /v - ✔✔displays verbose task information in output.
✔✔TTL for Windows - ✔✔128
✔✔TTL for linux - ✔✔64
✔✔IPv6 Bit Length - ✔✔128 bits (d eight segments of 16-bit hexadecimal numbers)
✔✔IPv4 Bit Length - ✔✔32 bits = 4 bytes
✔✔Kerebros client side .dll - ✔✔kerebros.dll
✔✔Kerebros server side .dll - ✔✔kdcsvc.dll
✔✔kerebros key distribution center (KDC) - ✔✔domain controllers act as KDCs, LSA
uses kdcsvc.dll
✔✔kerebros- realm - ✔✔the collection of computers/accounts secured by the KDC
✔✔authentication service - ✔✔issues the Ticket Granting Ticket (TGT) which serves as
proof of authentication
✔✔Ticket-Granting Ticket (TGT) - ✔✔user's proof that they provided the correct
credentials during initial logon
✔✔ticket granting service (TGS) - ✔✔responsible for issuing Service Tickets which
allow the user access to resources on the network
, ✔✔service ticket - ✔✔verified by a resource provider to allow user access to specific
resources
✔✔session key - ✔✔initial session key is the password hash of the user attempting to
logon
✔✔1st authentication service exchange step - ✔✔client sends a clear text request to
authenticate message to the AS
✔✔2nd authentication service exchange step - ✔✔AS checks for user in AD, AS sends
back encrypted SK and TGT
✔✔1st step of TGS exchange - ✔✔client sends encrypted TGT, the identity of
requested service and authentication
✔✔HKEY_USERS (HKU) - ✔✔contains a SID sub-key for all loaded user profiles.
✔✔HKEY_LOCAL_MACHINE (HKLM) - ✔✔contains specific information about the
hardware, software, and preferences for all users who log into the system.
✔✔HKEY_CLASSES_ROOT (HKCR) - ✔✔is used to associate file types with programs
that are used to open them.
✔✔HKEY_CURRENT_USER (HKCU) - ✔✔contains user profile environment settings of
the interactively logged on user.
✔✔HKEY_CURRENT_CONFIG (HKCC) - ✔✔used to establish the current hardware
configuration profile
✔✔FTP (Data) - ✔✔TCP 20
✔✔FTP (Control) - ✔✔TCP 21
✔✔SSH - ✔✔TCP 22
✔✔Telnet - ✔✔TCP 23
✔✔SMTP - ✔✔TCP 25
✔✔DNS (Queries) - ✔✔UDP 53
✔✔DNS (Zone Transfers) - ✔✔TCP 53
ANSWERS SURE A+
✔✔tasklist /m - ✔✔lists all tasks with DLL modules loaded that match the given pattern.
✔✔tasklist /v - ✔✔displays verbose task information in output.
✔✔TTL for Windows - ✔✔128
✔✔TTL for linux - ✔✔64
✔✔IPv6 Bit Length - ✔✔128 bits (d eight segments of 16-bit hexadecimal numbers)
✔✔IPv4 Bit Length - ✔✔32 bits = 4 bytes
✔✔Kerebros client side .dll - ✔✔kerebros.dll
✔✔Kerebros server side .dll - ✔✔kdcsvc.dll
✔✔kerebros key distribution center (KDC) - ✔✔domain controllers act as KDCs, LSA
uses kdcsvc.dll
✔✔kerebros- realm - ✔✔the collection of computers/accounts secured by the KDC
✔✔authentication service - ✔✔issues the Ticket Granting Ticket (TGT) which serves as
proof of authentication
✔✔Ticket-Granting Ticket (TGT) - ✔✔user's proof that they provided the correct
credentials during initial logon
✔✔ticket granting service (TGS) - ✔✔responsible for issuing Service Tickets which
allow the user access to resources on the network
, ✔✔service ticket - ✔✔verified by a resource provider to allow user access to specific
resources
✔✔session key - ✔✔initial session key is the password hash of the user attempting to
logon
✔✔1st authentication service exchange step - ✔✔client sends a clear text request to
authenticate message to the AS
✔✔2nd authentication service exchange step - ✔✔AS checks for user in AD, AS sends
back encrypted SK and TGT
✔✔1st step of TGS exchange - ✔✔client sends encrypted TGT, the identity of
requested service and authentication
✔✔HKEY_USERS (HKU) - ✔✔contains a SID sub-key for all loaded user profiles.
✔✔HKEY_LOCAL_MACHINE (HKLM) - ✔✔contains specific information about the
hardware, software, and preferences for all users who log into the system.
✔✔HKEY_CLASSES_ROOT (HKCR) - ✔✔is used to associate file types with programs
that are used to open them.
✔✔HKEY_CURRENT_USER (HKCU) - ✔✔contains user profile environment settings of
the interactively logged on user.
✔✔HKEY_CURRENT_CONFIG (HKCC) - ✔✔used to establish the current hardware
configuration profile
✔✔FTP (Data) - ✔✔TCP 20
✔✔FTP (Control) - ✔✔TCP 21
✔✔SSH - ✔✔TCP 22
✔✔Telnet - ✔✔TCP 23
✔✔SMTP - ✔✔TCP 25
✔✔DNS (Queries) - ✔✔UDP 53
✔✔DNS (Zone Transfers) - ✔✔TCP 53
