midterms Flashcards
What is Network Attached Storage? (NAS)
Storage that is attached to the local network and clients are able to accessed shared storage through LAN
What is Storage Area Network? (SAN)
Specialized high speed network of storage devices that allows clients to access shared storage as if a local device
What is Direct Access Storage? (DAS)
Storage that is directly attached to the computer that is using it
What are the three enterprise storage solutions?
NAS, SAN, and DAS
What is a hypervisor?
Software that creates and manages VMs
What’s the difference between type 1 VMs and type 2 VMs?
type 1 VMs (aka bare metal) run directly off the host machine’s hardware and is generally used in production.
type 2 VMS (aka OS on OS) run on top of the host OS and translates everything virtually
What is the difference between standard, essential, and datacentre versions of windows server?
essential is the bare version of windows server
standard allows for two vms + 1 hyper-v
datacentre allows for unlimited vms and 1 hyper-v
What’s the difference between NTFS vs Fat32?
NTFS allows for Compression, disk quotas, and permissions
What is an SID?
It is used to uniquely identify a security principal (ie computer) or security group and can be assigned permissions
What are the components of a SID?
- String identifying SID (S)
- SID revision version
- identifier authority value
- domain identifier
- relative identifier
What is ADDS?
A special database that contains information about objects (ie user and devices) and gives authority/authentication to access these resources
what is NTDS.dit?
It is the main database file for ADDS
What is a domain controller?
a server that responds to authentication requests
What are the physical parts of ADDS?
- Database
- Network authentication protocol
- DNS
- LDAP
What are the partitions of the database?
- Domain - contains objects
- Schema - contains classes (aka blueprints) and attributes (describes objects)
- applications - third party apps
- configuration (network infrastructure/domain architecture)
What is the Network authentication protocol?
kerberos verifies identities of users on a network (port 88)
What is the role of the DNS in a ADDS?
Locates domain on the network via SRV records
Forward lookup zone
domain name to ip address
reverse lookup zone
Ip address to domain
What is LDAP?
It is a communication protocol that ADDS uses to manage and store information in the NTDS.dit
What are the logical components of ADDS?
- Forest - atleast 1 tree
- Tree - a domain
- Site - group of domain controllers (for replication purposes)
- OU - custom organizational groups
How do domains maintain the same database/security rules between them?
domains replicate and share the database/permissions with each other
Why do we want multiple domains?
- Fault tolerance
- load balancing
What are domain controllers?
Microsoft with servers that have AD DS server roles installed and contain copies of information from AD