Data Communication
Test your knowledge of data communication protocols, network topologies, TCP/IP suite components, optical networking technologies (SONET, DWDM), and network management protocols (DHCP, SNMP, POP3, IMAP4, FTP).
Questions
The _____________ command in FTP protocol standard is used to copy multiple files from the remote to the local host.
- get
- mget
- put
- mput
- quit
The ____________ interface is one of several application programming interfaces to the communication protocols which is used by a process to request network services from the operating system.
- serial port
- parallel port
- USB port
- socket
- firewire port
The ____________ topology in data communication is designed with each node connected directly to a central network hub or concentrator.
- ring topology
- star topology
- tree topology
- bus topology
- mesh topology
The _____________ component of TCP/IP protocol consists of one or more LAN segments that are bounded by routers and use the same IP address prefix.
- node
- LAN segment
- subnet
- network
- router
The first phase in data communication using circuit switching technique is
- data transfer
- termination of connection
- connection establishment
- data sharing
- error detection
The _______________ protocol of application layer of TCP/IP collects and exchanges network management information between a network management console and network devices, such as routers, bridges and servers.
- HTTP
- FTP
- SMTP
- SNMP
- RIP
The ___________ network management task assumes that access to network resources is controlled and the data integrity is ensured in the course of their storage or transmission across the network.
- configuration management
- fault management
- security management
- accounting management
- performance management
The ____________ core protocol of IPv4 layer resolves the internet layer address to a network interface layer address, such as a hardware address.
- internet protocol (IP)
- internet control message protocol (ICMP)
- address resolution protocol (ARP)
- internet group management protocol (IGMP)
- transmission control protocol (TCP)
The ____________ terminal multiplexer of Synchronous Optical Network(SONET) receives an OC-N signal from which it can demultiplex and terminate any number of DSn or OC-M signals.
- SONET/SDH terminal multiplexer
- SONET/SDH add/drop multiplexer
- digital cross connect systems
- DWDM
- optical supervisory channel
The ____________ DHCP message format sends negative acknowledgment from server to client indicating that the clients lease has expired or that a requested IP address in incorrect.
- DHCPDISCOVER
- DHCPACK
- DHCPOFFER
- DHCPNACK
- DHCPRELEASE
The _____________ component of Dense Wavelength Division Multiplexing(DWDM) compensates the loss in optical power while the signal travels along the fibre.
- DWDM terminal multiplexer
- optical add/drop multiplexer
- DWDM terminal demultiplexer
- intermediate line amplifier
- optical supervisory channel
The ________ POP3 command is used to retrieve the number of messages and total size of the messages.
- STAT
- RETR
- NOOP
- RSET
- QUIT
The _____________ IP address allocation mechanism in DHCP protocol assigns an IP address for a limited period of time.
- automatic allocation
- manual allocation
- dynamic allocation
- client hardware address
- BOOTP forwarding
In the ________________ state in IMAP4 protocol, a mailbox is successfully selected and actions can be taken against the mail within the mailbox.
- non authenticated
- authenticated
- selected
- logout
- waiting
The __________ phase of link control protocol of point to point protocol specifies the policy for determining quality and provides low-level tools, such as echo request and reply.
- link establishment and configuration negotiation
- authentication
- link quality determination
- network layer protocol configuration negotiation
- link termination