CCNA, Network +, CCNP, and CCENT Practice Exam - physical addresses, conversions, hexadecimal, and more!

Here are some questions, free training for those of you tracking your Cisco CCNA, CCENT, and CCNP certification, and Network + certification!

Cisco CCENT And Network + Certification:

What do the terms "physical address" MAC address "and" Hardware Address "in common?

Answer: They all describe the same thing - a Data Link layer address. The terms "physical address" and "hardware address" refer to the fact that MAC addresses are physicallyburned in the network hardware, in this case the Network Interface Card (NIC).

CCNA:

Short answer: What is the binary equivalent of hexadecimal C9?

Answer: We have 12 ("c") units 16 and 9 units of 1: 192 + 9 = 201 201 binary equivalent of 11001001.

CCNA Certification / BSCI exam:

Further, transport, ports of a unicast transmission if the command ip helper-address has been configured to be translated?

A.TIME

B. TACACS

ABOUT C.

D. SNMP

E. TALK

F. DNS

Answer: A, B, F. this is the ports that are translated by Broadcast are unicast to IP-helper-address command:

TIME, port 37 TACACS, port 49, DNS, port 53; BOOTP / DHCP server, port 67 BOOTP / DHCP Client, TFTP port 68, port 69 NetBIOS name service, port 137 NetBIOS datagram service, port 138

CCNP Certification / BCMSN exam:

The complete command to disable a switch port capacitySend DTP frames is ____________.

Answer: The door switch nonegotiate.

CCNP Certification / ISCW exam:

Briefly describe a "DDoS attack.

Answer: A Distributed Denial of Service attack is a typical DoS attack, but has a large number of attackers, rather than performing a single host.

CCNP Certification / ONT Exam:

A router is configured for DiffServ. Which of the following values, the router can be considered when implementing QoS?

A. Previous IP

B.CoS marking

C. incoming interface

D. DSCP