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26 Cards in this Set
- Front
- Back
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What is an enterprise directory?
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It is a customizable information store that functions as a single point from which users can locate resources and services distributed throughout the network.
It also also gives administrators a single point of administration. It is actually most often stored in a distributed form |
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When was Active Directory first implemented?
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Originally introduced as part of Windows Server 2000 released on 12/15/1999.
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What is Active Directory
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Information Source
Extensible Schema Single point of Administration Application of Policies Search via DNS and LDAP Partitioning via Domains Multi-Master Replication Enhanced Enterprise Query Security Controls |
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Give some examples of the Logical Structure of AD:
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Objects
Schema Containers Domains Organizational Units Tree Forest DNS Integration |
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What is an object?
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It is a distinct item that represents something concrete (i.e. a user or an OU).
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What are attributes?
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They are named characteristics of objects.
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Describe an object class:
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Logical grouping of objects
Share same set of attributes For example a User is an object class |
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Describe the Schema:
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Defines the Set of all Object Classes and Attributes
Defines Required and Optional Attributes Extensible |
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What is a container?
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It is any object that can hold other objects.
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Describe Active Directory Domains:
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Boundary of Authentication
Largest Boundary of Security Policies Boundary of Replication Unique Namespace |
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What is an OU?
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It is an Organizational Units, which are Container Objects within Domains.
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What is a Domain Tree?
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A hierarchy of Domains forming a contiguous namespace with Transitive Trust Relationships
All Domains in a Tree share: Schema Configuration Global Catalog |
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What is Transitive Trust?
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A trust is a relationship, which you establish between domains, that makes it possible for users in one domain to be authenticated by a domain controller in the other domain.
Transitive Trust means that if A trusts B and B trusts C, A trusts C. |
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What is a Domain Forest?
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It is a hierarchy of Domains forming a contiguous or disjointed namespace.
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What is a Site? Site Links? Site Link Bridges?
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a site is a set of well-connected IP subnets (10mbps or better)
Sites are connected with Site Links Site Link Bridges connect Site Links |
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What is DNS?
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DNS (Domain Naming System) provides location services to all IP-based networks
Such as IP Address-to-Name translation (PTR) Name-to-IP Address translation (A) Service (SRV) Records |
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What are common DNS record types?
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A or AAA records
NS records MX records CNAME records SRV records PTR records |
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Describe the 3 components of DNS:
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A “name space”, servers making that name space available
and Resolvers (clients) which query the servers about the name space |
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Why does traditional DNS offer a single point of failure?
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Only the Primary Server (Master) can make changes to the zone file (the records). If the Primary goes down, DNS can no longer be changed.
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The namespace needs to be __________________________.
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made hierarchical to be able to scale.
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Administrators may ______________ to make administration easier
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delegate control of a subdomain
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Zones are _______________.
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“administrative spaces"
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Name servers answer _____________.
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‘DNS’ questions
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What are recursive servers?
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Recursive servers do the actual lookups; they ask questions to the DNS on behalf of the clients.
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What is a resolver?
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Resolvers ask the questions to the DNS system on behalf of the application. It is usually integrated in the OS.
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What is the SOA record?
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The Start of Authority (SOA) record provides information about the start of authority, i.e. the top of the zone, also called the APEX
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