Note: Text in bold lettering represents test objectives.
Network Services
TCP/IP configuration parameters.What is default gateway?
Default gateway is a TCP/IP configuration option, used to communicate with TCP/IP nodes on remote network segments. At least one interface must be configured with the IP address of a default gateway.
Configuration of IP addresses in Windows 2000 and Linux.
User access levels.
Password policies.
What is change command?
The change command is used for changing user password expire information.
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Syntax:
change [-m mindays] [-M maxdays] [-d lastday] [-E expireday] [-I inactive] [-W warndays] [-l] user
The functions of the switches are as follows:
Switch . . . . . . Function
-m . . . . . . Minimum number of days between each successive password change.
-M . . . . . . Maximum number of days during which a password remains valid.
-d . . . . . . Number of days since January 1st, 1970 when a password was last changed.
-E . . . . . . The date on which the user account will no longer be accessible.
-I . . . . . . Number of days since the expiry of a user password when an account is locked.
-W . . . . . . Number of days of warning before a password change is required.
-l . . . . . . Used by a non-administrative user to check his account/password expiry status.
Permissions based on standard practice and procedures.
Management of users in Windows 2000 and Linux.
What is PS command?
The PS command reports the status of processes that are currently running on a Linux computer.
DNS in Windows 2000 and Linux.
What is DNS?
Domain Name System (DNS) is a hierarchical naming system used for locating domain names on private TCP/IP networks and the Internet. It provides a service for mapping DNS domain names to IP addresses and vice versa.
DNS enables users to use friendly names to locate computers and other resources on an IP network. TCP/IP uses IP addresses to locate and connect to hosts, but for users it is easier to use names instead of IP address to locate or connect to a site. For example, users will be more comfortable in using the host name www.uCertify.com rather than using its IP address 66.111.64.227.
What is an A record?
An A (host) record is a DNS database resource record (RR), which contains the owner name or host DNS name, and the host IP address. Multiple host records can be created in a DNS database with the same host name that maps to the IP addresses of different Web servers.
What is an MX record?
An MX record is also known as mail exchanger record in the zone file of Domain Name Server (DNS). MX record associates the domain name to a domain name classified in an address record (A record). The syntax defining an MX record depends on the TCP/IP software run by the host.
What is CNAME resource record?
Canonical Name (CNAME) is a resource record that creates an alias for the specified Fully Qualified Domain Name (FQDN). It hides the implementation details of a network from the clients that are connected to the network.
What is HINFO record?
HINFO stands for Host Information. HINFO records are maintained to provide hardware and operating system information about each host in the network. For security reasons, HINFO records are not provided on public network servers. However, no application depends upon these records, and the sole purpose of maintaining HINFO records is to provide additional information to the applications. For example, application protocols such as FTP may use special procedures when communicating with computers of a known CPU and operating system type.
Name resolutions for LAN and WAN.
What is FQDN?
Fully Qualified Domain Name (FQDN) is a unique name of a host or computer, which represents its position in the hierarchy. An FQDN begins with a host name and ends with the top-level domain name. FQDN includes second-level domain and other lower level domains.
For example, the FQDN of the address
HTTP:WWW.UNI.ORGSTATETESTSUBJECT will be WWW.UNI.ORG.
where, WWW is the host name, UNI is the second-level domain, ORG is the top-level domain name.
WINS.
Samba.
Limitation of access based on IP address.
SSL transactions.
What is SSL?
Secure Sockets Layer (SSL) uses a combination of public key and symmetric encryption to provide communication privacy, authentication, and message integrity. Using the SSL protocol, clients and servers can communicate in a way that prevents eavesdropping and tampering of data on the Internet.
Internal and external security.
Proxy servers.
Internet servers.