Network+ Exam Cram 2 (Exam Cram N10-002)

by Harwood, Mike; Tittel, Ed

• ISBN13: 9780789728654
• ISBN10: 0789728656
• Edition: 2nd
• Format: Paperback w/CD
• Copyright: 2003-01-01
• Publisher: Que

Summary

This exam certifies that candidates know the layers of the OSI model, can describe the features and functions of network components, and have the skills needed to install, configure, and troubleshoot basic networking hardware peripherals and protocols. The Network+ exam, developed by CompTIA, is only two years old but already is held by 50,000 individuals (an adoption rate that is even faster than A+, CompTIA's flagship certification). It is now being taught in schools and has grown 120% in the past year. Currently, 4,000 candidates are sitting the Network+ exam each month. The certification is endorsed by Microsoft (as part of its popular new MCSA program), Cisco, Novell, and 3Com, among others. Readers preparing for this exam find the best-selling Exam Cram2 series to be the smartest, most efficient way to become certified. This book focuses on exactly what readers need to get certified now, featuring test-taking strategies, time-saving study tips, and a special Cram Sheet that includes tips, acronyms, and memory joggers that are not available anywhere else. ExamCram2 also features PrepLogic" Practice Tests!

Table of Contents

Introduction	xxii
Self-Assessment	xxvii
Introduction to Networking	1	(24)
Introduction	2	(1)
LANs and WANs	2	(1)
LANs	2	(1)
WANs	3	(1)
Network models	3	(2)
Peer-to-peer networking	3	(1)
Client/server networking model	4	(1)
Centralized and distributed computing	5	(1)
Network topologies	5	(6)
Bus topology	6	(1)
Ring topology	6	(1)
Star topology	7	(2)
Mesh topology	9	(1)
Wireless networking	10	(1)
IEEE and networking standards	11	(3)
802.2 IEEE standard	12	(1)
802.3 IEEE standard	12	(1)
802.5 IEEE standard	13	(1)
802.11b IEEE standard	13	(1)
FDDI	14	(2)
Review and test yourself	16	(9)
The facts	16	(1)
Key terms	17	(1)
Practice exam	18	(5)
Want to know more?	23	(2)
Cabling and Connectors	25	(26)
Introduction	26	(1)
General media considerations	26	(2)
Broadband versus baseband	26	(1)
Simplex, half duplex, and full duplex	26	(1)
Media interference	27	(1)
Attenuation	27	(1)
Bandwidth	28	(1)
Network media	28	(7)
Coaxial	28	(2)
Twisted-pair cabling	30	(2)
Fiber-optic cable	32	(1)
Wireless media	33	(2)
Media connectors	35	(4)
BNC connectors	35	(1)
RJ-45 connectors	36	(1)
AUI connectors	37	(1)
Fiber connectors	37	(2)
IEEE 802.3 standards	39	(4)
10Base2	39	(1)
10Base5	39	(1)
10BaseT	40	(1)
Fast Ethernet	41	(1)
Gigabit Ethernet	42	(1)
Review and test yourself	43	(7)
The facts	43	(1)
Key terms	44	(1)
Practice exam	45	(5)
Want to know more?	50	(1)
Networking Devices	51	(24)
Introduction	52	(1)
Hubs	52	(1)
MSAU	52	(1)
Switches	53	(3)
Hub and switch cabling	54	(2)
Bridges	56	(1)
Bridge placement and bridging loops	56	(1)
Types of bridges	57	(1)
Routers	57	(3)
Static routing	58	(1)
Dynamic routing	59	(1)
Gateways	60	(1)
CSU/DSU	61	(1)
Wireless access points	61	(1)
Modems	61	(2)
Network cards	63	(2)
ISDN adapters	64	(1)
System area network cards	64	(1)
MAC addresses	65	(1)
Review and test yourself	66	(8)
The facts	66	(2)
Key terms	68	(1)
Practice exam	69	(5)
Want to know more?	74	(1)
OSI Model and Network Protocols	75	(24)
Introduction	76	(1)
OSI seven layer model	76	(4)
Physical layer (Layer 1)	77	(1)
Data-link layer (Layer 2)	77	(1)
Network layer (Layer 3)	77	(1)
Transport layer (Layer 4)	78	(1)
Session layer (Layer 5)	79	(1)
Presentation layer (Layer 6)	79	(1)
Application layer (Layer 7)	79	(1)
OSI model summary	80	(1)
Identifying the OSI layers at which various network components operate	81	(1)
Differentiating among protocols	81	(9)
Connectionless and connection-oriented protocols	81	(1)
The TCP/IP protocol suite	82	(2)
Internetwork packet exchange/sequenced packet exchange	84	(2)
Apple Talk	86	(3)
NetBEUI protocol	89	(1)
Protocol summary	89	(1)
Review and test yourself	90	(7)
The facts	90	(1)
Key terms	91	(2)
Practice exam	93	(4)
Want to know more?	97	(2)
TCP/IP (Transmission Control Protocol/Internet Protocol)	99	(26)
Introduction	100	(6)
Internet Protocol (IP)	100	(1)
Transmission Control Protocol (TCP)	100	(1)
User Datagram Protocol (UDP)	100	(1)
File Transfer Protocol (FTP)	101	(1)
Trivial File Transfer Protocol (TFTP)	102	(1)
Simple Mail Transfer Protocol (SMTP)	102	(1)
Hypertext Transfer Protocol (HTTP)	102	(1)
Hypertext Transfer Protocol Secure (HTTPS)	103	(1)
Post Office Protocol (POP) and Internet Message Access Protocol (IMAP)	103	(1)
Telnet	103	(1)
Internet Control Message Protocol (ICMP)	104	(1)
Address Resolution Protocol (ARP)	104	(1)
Network Time Protocol (NTP)	104	(1)
TCP/IP protocol suite summary	104	(2)
TCP/UDP port functions	106	(1)
Network services	107	(4)
Dynamic Host Configuration Protocol (DHCP) and Boot Protocol (BOOTP)	107	(1)
Domain Name Service (DNS)	108	(1)
Network Address Translation (NAT) and Internet Connection Sharing (ICS)	109	(1)
Simple Network Management Protocol (SNMP)	110	(1)
Windows Internet Name Service (WINS)	110	(1)
TCP/IP service summary	111	(1)
Identifying IP addresses (IPv4, IPv6) and their default subnet masks	111	(3)
IP addressing	112	(1)
IPv4	112	(1)
IP address classes	113	(1)
Subnet mask assignment	113	(1)
IPv6 addressing	114	(1)
Identifying the purposes of subnetting and default gateways	114	(1)
Default gateways	115	(1)
Identifying the differences between public and private networks	115	(2)
Private address ranges	116	(1)
Review and test yourself	117	(6)
The facts	117	(2)
Practice exam	119	(4)
Want to know more?	123	(2)
WAN Technologies, Remote Access, and Security Protocols	125	(30)
Introduction	127	(1)
WAN technologies	127	(6)
Dial-up modem connections	127	(1)
Integrated Services Digital Network (ISDN)	128	(1)
T-carrier lines	129	(1)
Fiber Distributed Data Interface (FDDI)	130	(1)
Asynchronous Transfer Mode (ATM)	131	(1)
X.25	131	(1)
Frame relay	132	(1)
SONET/OC-x levels	132	(1)
Remote access protocols and services	133	(4)
Remote Access Service (RAS)	133	(1)
SLIP	134	(1)
PPP	135	(1)
PPTP	136	(1)
Independent Computing Architecture (ICA)	137	(1)
Security protocols	137	(4)
IP Security (IPSec)	138	(1)
Layer 2 Forwarding (L2F)	139	(1)
Layer 2 Tunneling Protocol (L2TP)	139	(1)
Secure Sockets Layer (SSL)	140	(1)
Kerberos	140	(1)
SSH	141	(1)
Configuring remote connectivity	141	(5)
Physical connections	141	(1)
Protocols	142	(2)
Software	144	(1)
Dial-up access	144	(2)
Review and test yourself	146	(7)
The facts	146	(1)
Key terms	147	(2)
Practice exam	149	(4)
Want to know more?	153	(2)
Network Operating Systems and Clients	155	(44)
Introduction	156	(1)
Network operating systems	156	(17)
Windows NT 4	157	(5)
Windows 2000	162	(3)
Novell NetWare	165	(4)
Linux	169	(4)
Operating system interoperability	173	(1)
Using Windows with NetWare	173	(1)
Using Windows and Linux servers	174	(1)
Using NetWare and Linux servers	174	(1)
Operating system client support	174	(2)
Windows server client support	175	(1)
NetWare server client support	175	(1)
Linux server client support	175	(1)
Client operating systems	176	(5)
Windows 95, Windows 98, and Windows Me	176	(1)
Windows NT Workstation, Windows 2000 Professional, and Windows XP Professional	177	(2)
Linux	179	(1)
Macintosh	180	(1)
Selecting a NIC and network configuration settings	181	(7)
Choosing a NIC	181	(1)
Connecting the PC to the network	182	(1)
Testing and troubleshooting the NIC	183	(1)
Configuring the NIC settings	184	(3)
Using DHCP (Dynamic Host Control Protocol)	187	(1)
Configuring clients to access servers	188	(3)
Configuring Microsoft Windows clients	188	(2)
Unix/Linux client software	190	(1)
Review and test yourself	191	(7)
The facts	191	(1)
Key Terms	192	(2)
Practice Exam	194	(4)
Want to know more?	198	(1)
Fault Tolerance, Disaster Recovery, VLANs, and NAS	199	(24)
Introduction	200	(1)
Fault tolerance	200	(8)
Disk-level fault tolerance	200	(5)
Server fault tolerance	205	(2)
Using uninterruptible power supplies	207	(1)
Disaster recovery	208	(4)
Full backup	208	(1)
Differential backup	209	(1)
Incremental backup	210	(1)
Tape rotations	211	(1)
Backup best practices	211	(1)
Network Attached Storage (NAS)	212	(1)
Virtual LANs	213	(2)
VLAN membership	214	(1)
Review and test yourself	215	(7)
The facts	215	(1)
Key terms	216	(1)
Practice exam	217	(5)
Want to know more?	222	(1)
Network Security	223	(20)
Introduction	224	(1)
Firewalls	224	(3)
Packet-filtering firewalls	225	(1)
Circuit-level firewalls	226	(1)
Application gateway firewalls	226	(1)
Proxy servers	227	(3)
Caching proxy servers	228	(1)
Using a proxy server	229	(1)
Understanding how security affects a network	230	(4)
Blocking port numbers	230	(1)
Port blocking and network users	231	(1)
Encryption	231	(2)
Auditing	233	(1)
Authentication, passwords, and password policies	234	(2)
Password policies	234	(1)
Password strength	235	(1)
Review and test yourself	236	(6)
The facts	236	(1)
Key terms	237	(1)
Practice exam	238	(4)
Want to know more?	242	(1)
Troubleshooting Connectivity	243	(44)
Introduction	245	(1)
Troubleshooting with diagnostic utilities	245	(17)
The tracert command	245	(2)
ping	247	(5)
ARP	252	(1)
The netstat command	253	(5)
nbtstat	258	(1)
The ipconfig command	259	(2)
The winipcfg command	261	(1)
nslookup	261	(1)
Supporting and troubleshooting the small office and home environment	262	(8)
POTS	263	(1)
Working with a modem	263	(1)
Cable Internet access	264	(1)
DSL	265	(1)
Troubleshooting DSL	266	(1)
Wireless	267	(1)
Home satellite	268	(2)
Troubleshooting remote connectivity errors	270	(2)
Authentication	271	(1)
Protocol configuration	271	(1)
Physical connectivity	272	(1)
Using network tools	272	(3)
Wire crimpers	272	(1)
Punchdown tools	273	(1)
Tone generators (and tone locators)	273	(1)
Media testers	274	(1)
Hardware loopback connectors	274	(1)
Interpreting visual indicators	275	(2)
LEDs on networking devices	275	(1)
LEDs on NICs and other devices	276	(1)
Review and test yourself	277	(8)
The facts	277	(2)
Key terms	279	(1)
Practice exam	280	(5)
Want to know more?	285	(2)
Troubleshooting and Supporting the Network	287	(26)
Introduction	289	(1)
Troubleshooting steps and procedures	289	(3)
Establish the symptoms	289	(1)
Identify the affected area	290	(1)
Establish what has changed	290	(1)
Select the probable cause	291	(1)
Implement a solution	291	(1)
Test the results	291	(1)
Recognize the potential effect of the solution	292	(1)
Document the solution	292	(1)
Identify and troubleshoot errors with a particular physical topology	292	(4)
Star topology	293	(1)
Ring topology	293	(1)
Bus network errors	294	(1)
Mesh network errors	295	(1)
Wireless network errors	295	(1)
Identifying and troubleshooting client connectivity problems	296	(4)
Protocol errors	296	(1)
Authentication	297	(1)
Permissions errors	298	(1)
Physical connectivity errors	299	(1)
Troubleshooting wiring- and infrastructure-related problems	300	(2)
Troubleshooting wiring	300	(1)
Troubleshooting the infrastructure	301	(1)
Predicting the impact of modifying, adding, or removing network services	302	(2)
Adding, modifying, or removing DHCP	302	(1)
Adding, modifying, or removing WINS	303	(1)
Adding, modifying, or removing DNS	304	(1)
Review and test yourself	304	(8)
The facts	304	(1)
Key terms	305	(2)
Practice exam	307	(5)
Want to know more?	312	(1)
Practice Exam 1	313	(30)
Answers to exam questions	334	(9)
Practice Exam 2	343	(30)
Answers to exam questions	363	(10)
Appendix A What's on the CD-ROM	373	(4)
PrepLogic Practice Tests, Preview Edition	374	(1)
Exclusive Electronic Version of Text	374	(1)
Easy Access to Online Pointers and References	375	(2)
Appendix B Using the PrepLogic Practice Tests, Preview Edition Software	377	(8)
Exam Simulation	378	(1)
Question Quality	378	(1)
Interface Design	378	(1)
Effective Learning Environment	378	(1)
Software Requirements	379	(1)
Installing PrepLogic Practice Tests, Preview Edition	379	(1)
Removing PrepLogic Practice Tests, Preview Edition from Your Computer	379	(1)
Using PrepLogic Practice Tests, Preview Edition	380	(1)
Starting a Practice Test Mode Session	380	(1)
Starting a Flash Review Mode Session	381	(1)
Standard PrepLogic Practice Tests, Preview Edition Options	381	(1)
Time Remaining	382	(1)
Your Examination Score Report	382	(1)
Review Your Exam	383	(1)
Get More Exams	383	(1)
Contacting PrepLogic	383	(1)
Customer Service	383	(1)
Product Suggestions and Comments	383	(1)
License Agreement	384	(1)
Glossary	385	(44)
Index	429